Works (67)

Updated: April 4th, 2024 09:11

2024 journal article

Kriging-Based 3-D Spectrum Awareness for Radio Dynamic Zones Using Aerial Spectrum Sensors

IEEE Sensors Journal.

TL;DR: 3-D Kriging interpolation technique provides significantly better radio maps when compared with an approach that assumes perfect knowledge of path loss, and the root-mean-square error of the signal power prediction achieved by the proposed 3-D Kriging method is notably lower compared to that of the perfect path loss-based prediction. (via Semantic Scholar)
Source: ORCID
Added: February 1, 2024

2023 article

AERIQ: SDR-Based LTE I/Q Measurement and Analysis Framework for Air-to-Ground Propagation Modeling

2023 IEEE AEROSPACE CONFERENCE.

By: S. Maeng n, O. Ozdemir n, I. Guvenc n, M. Sichitiu n, R. Dutta n & M. Mushi n

TL;DR: AERIQ is integrated into controllable aerial vehicles, it is flexible, repeatable, and provides raw I/Q samples for post-processing the data to extract various key parameters of interest (KPIs) over a 3D volume. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 18, 2023

2023 article

Cellular Spectrum Occupancy Probability in Urban and Rural Scenarios at Various UAS Altitudes

2023 IEEE 34TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, PIMRC.

By: A. Raouf n, S. Maeng n, I. Guvenc n, O. Ozdemir n & M. Sichitiu n

author keywords: 5G; AERPAW; C-Band; CBRS; drone; helikite; LTE; spectrum monitoring; unmanned aerial vehicles (UAV)
TL;DR: The findings reveal that the probability of occupancy is generally higher in the downlink compared to the uplink, and that line-of-sight (LoS) signals play a critical role in higher altitudes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: January 29, 2024

2023 article

Demonstration of Joint SDR/UAV Experiment Development in AERPAW

MILCOM 2023 - 2023 IEEE MILITARY COMMUNICATIONS CONFERENCE.

By: A. Gurses n, M. Funderburk n, J. Kesler n, K. Powell*, T. Rahman*, O. Ozdemir n, M. Mushi n, M. Sichitiu n ...

Contributors: A. Gürses n, M. Funderburk n, J. Kesler n, K. Powell*, T. Rahman*, O. Özdemir n, M. Mushi n, M. Sichitiu n ...

TL;DR: This demo exercises the main three flexible testbed capabilities, namely the ability of an experimenter to choose a wireless radio setup, a vehicle setup, and to set up traffic. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: March 25, 2024

2023 article

End-to-end Full-Stack Drone Measurements: A Case Study Using AERPAW

2023 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS, ICC WORKSHOPS, pp. 1422–1427.

By: M. Drago*, A. Gurses n, R. Heath n, M. Sichitiu n & M. Zorzi*

Contributors: M. Drago*, A. Gurses n, R. Heath n, M. Sichitiu n & M. Zorzi*

author keywords: AERPAW; UAV; SDR; LTE
TL;DR: This paper uses AERPAW for the end-to-end evaluation of the performance of an emulated Uplink traffic between an Unmanned Aerial Vehicle (UAV) and a Fixed Node (FN), connected through an open source LTE network software (srsRAN). (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: March 11, 2024

2023 journal article

LTE I/Q Data Set for UAV Propagation Modeling, Communication, and Navigation Research

IEEE COMMUNICATIONS MAGAZINE, 61(9), 90–96.

By: S. Maeng n, O. Ozdemir n, I. Guvenc n, M. Sichitiu n, M. Mushi n & R. Dutta n

author keywords: Wireless communication; Visualization; Codes; Radio navigation; Metadata; Autonomous aerial vehicles; Long Term Evolution
TL;DR: This article introduces raw LTE in-phase and quadrature sample data sets obtained from physical field experiments of the NSF AERPAW experimentation platform and implements a standardized metadata format that can be used to replicate the results obtained from the collected datasets. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: October 30, 2023

2023 journal article

Minimizing Ground Risk in Cellular-Connected Drone Corridors With mmWave Links

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 59(6), 7923–7937.

By: S. Singh n, M. Sichitiu n, I. Guvenc n & A. Bhuyan*

author keywords: Autonomous aerial vehicles; Drones; Trajectory; Internet of Things; Wireless communication; Millimeter wave communication; 5G mobile communication; A* search; beamforming; conflict-based search (CBS); drone corridor; ground risk; mmWave; multiagent pathfinding (MAPF); unmanned aircraft system (UAS); unmanned aircraft system traffic management (UTM)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: August 5, 2023

2023 article

Spectrum Activity Monitoring and Analysis for Sub-6 GHz Bands Using a Helikite

2023 15TH INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS & NETWORKS, COMSNETS.

By: S. Maeng n, O. Ozdemir n, H. Nandakumar n, I. Guvenc n, M. Sichitiu n, R. Dutta n, M. Mushi n

author keywords: AERPAW; helikite; LTE; air-to-ground; software-defined radio; spectrum monitoring
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: May 30, 2023

2023 article

Spectrum Monitoring and Analysis in Urban and Rural Environments at Different Altitudes

2023 IEEE 97TH VEHICULAR TECHNOLOGY CONFERENCE, VTC2023-SPRING.

By: A. Raouf n, S. Maeng n, I. Guvenc n, O. Ozdemir n & M. Sichitiu n

author keywords: 5G; C-Band; CBRS; helikite; LTE; spectrum monitoring; unmanned aerial vehicles (UAV)
TL;DR: The results reveal that generally the mean value of the measured power increases as the altitude increases where the line-of-sight links with nearby base stations is more available. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: November 20, 2023

2022 article

60 GHz Outdoor Propagation Measurements and Analysis Using Facebook Terragraph Radios

2022 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS), pp. 156–159.

By: K. Du n, O. Mujumdar n, O. Ozdemir n, E. Ozturk n, I. Guvenc n, M. Sichitiu n, H. Dai n, A. Bhuyan*

author keywords: 60 GHz; AERPAW; channel sounding measurements; delay spread; drone; LOS; mmWave; MPCs; path loss
TL;DR: This work investigated the propagation and scattering behavior of 60 GHz mmWave signals in outdoor environments at a travel distance of 98 m for an aerial link (rooftop to rooftop), and 147 m for a ground link (light-pole to light-pole). (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 13, 2022

2022 article

AERPAW Vehicles: Hardware and Software Choices

PROCEEDINGS OF THE 2022 EIGHTH WORKSHOP ON MICRO AERIAL VEHICLE NETWORKS, SYSTEMS, AND APPLICATIONS, DRONET 2022, pp. 37–42.

By: M. Funderburk n, J. Kesler n, K. Sridhar n, M. Sichitiu n, I. Guvenc n, R. Dutta n, T. Zajkowski n, V. Marojevic*

TL;DR: The vehicle aspects of the testbed, including the AERPAW UAVs, UGVs, as well as the hardware and software choices made by the team, aswell as the experience earned in the past few years are detailed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: September 18, 2023

2022 article

Automating Operator Oversight in an Autonomous, Regulated, Safety-Critical Research Facility

2022 31ST INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS (ICCCN 2022).

By: T. Samal n, R. Dutta n, I. Guvenc n, M. Sichitiu n, B. Floyd n & T. Zajkowski n

author keywords: Wireless; testbed; 5G; NextG; UAV; UAS; drone
TL;DR: The challenges and considerations of designing architectural mechanisms that balance freedom of experimentation with regulatory compliance and safety are articulated, and the architectural features of AERPAW are presented that attempt to realize these lofty goals. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: October 17, 2022

2022 article

National Radio Dynamic Zone Concept with Autonomous Aerial and Ground Spectrum Sensors

2022 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (ICC WORKSHOPS), pp. 687–692.

By: S. Maeng n, I. Guvenc n, M. Sichitiu n, B. Floyd n, R. Dutta n, T. Zajkowski n, O. Ozdemir n, M. Mushi n

author keywords: Index Words; 5G; cellular drone; mmWave; spectral efficiency; wireless security; NRDZ.
TL;DR: This paper elaborate on key characteristics and features of an NRDZ to enable advanced wireless experimentation while also coexisting with licensed users and some preliminary results based on simulation and experimental evaluations are provided on out-of-zone leakage monitoring and real-time REMs. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 26, 2022

2022 article

Out-of-Zone Signal Leakage Sensing in Radio Dynamic Zones

IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2022), pp. 5579–5584.

By: S. Maeng n, I. Guvenc n, M. Sichitiu n & O. Ozdemir n

author keywords: Correlated shadowing; estimation; interpolation; Kriging; national radio dynamic zone (NRDZ)
TL;DR: This paper introduces a spectrum monitoring concept for OoZ signal leakage detection at RDZs, where sensor nodes (SNs) are installed at the boundary of an RDZ and monitor the power leakage from multiple transmitters within the RDZ. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: December 12, 2022

2022 article

The AERPAW Experiment Workflow - Considerations for Designing Usage Models for a Computing-supported Physical Research Platform

IEEE INFOCOM 2022 - IEEE CONFERENCE ON COMPUTER COMMUNICATIONS WORKSHOPS (INFOCOM WKSHPS).

By: M. Mushi*, H. Joshi*, R. Dutta*, I. Guvenc*, M. Sichitiu*, B. Floyd*, T. Zajkowski n

author keywords: Wireless; testbed; 5G; NextG; UAV; UAS; drone
TL;DR: The challenges and considerations of designing an experiment workflow that balances the need for guaranteeing safe testbed operation, and providing flexible programmatic access to this unique resource are articulated. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: October 31, 2022

2021 article

A Taxonomy and Survey on Experimentation Scenarios for Aerial Advanced Wireless Testbed Platforms

2021 IEEE AEROSPACE CONFERENCE (AEROCONF 2021).

By: M. Chowdhury n, C. Anjinappa n, I. Guvenc n, M. Sichitiu n, O. Ozdemir n, U. Bhattacherjee n, R. Dutta n, V. Marojevic*, B. Floyd n

Contributors: M. Chowdhury n, C. Anjinappa n, I. Guvenc n, M. Sichitiu n, O. Ozdemir n, U. Bhattacherjee n, R. Dutta n, V. Marojevic*, B. Floyd n

TL;DR: A brief overview of large-scale advanced wireless experimentation platforms broadly available to the wireless research community, including also the Aerial Experimentation and Research Platform for Advanced Wireless (AERPAW). (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 13, 2021

2021 journal article

AERPAW emulation overview and preliminary performance evaluation

COMPUTER NETWORKS, 194.

By: A. Panicker n, O. Ozdemir n, M. Sichitiu n, I. Guvenc n, R. Dutta n, V. Marojevic*, B. Floyd n

Contributors: A. Panicker n, O. Ozdemir n, M. Sichitiu n, I. Guvenc n, R. Dutta n, V. Marojevic*, B. Floyd n

author keywords: AERPAW; Emulation; UAV
TL;DR: This paper first presents the emulation design of AERPAW vehicles, then describes various different options for wireless channel emulation in AerPAW, and starts with a generalized model for wireless emulation, and expands that model to packet-level emulation, I-Q level emulator, and radio-frequency (RF)-level emulation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID
Added: April 21, 2021

2021 journal article

FPV Video Adaptation for UAV Collision Avoidance

IEEE OPEN JOURNAL OF THE COMMUNICATIONS SOCIETY, 2, 2095–2110.

By: S. Singh n, H. Lee, T. Tran*, Y. Zhou*, M. Sichitiu n, I. Guvenc n, A. Bhuyan*

author keywords: Streaming media; Unmanned aerial vehicles; Collision avoidance; Optical sensors; Feeds; Real-time systems; Measurement; Collision avoidance; FPV; safety; UAV; video adaptation
TL;DR: A theoretical model for obstacle collisions that considers the current communication channel conditions, the real time video parameters, and the UAV’s position relative to the closest obstacle is presented and the performance of the proposed adaptive algorithm was found to be higher than the closest non-adaptive one in terms of maximizing the probability of avoiding collision. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 20, 2021

2021 article

Placement of mmWave Base Stations for Serving Urban Drone Corridors

2021 IEEE 93RD VEHICULAR TECHNOLOGY CONFERENCE (VTC2021-SPRING).

By: S. Singh n, U. Bhattacherjee n, E. Ozturk n, I. Guvenc n, H. Dai n, M. Sichitiu n, A. Bhuyan*

author keywords: Drone corridor; mmWave; beamforming; A* search
TL;DR: This work develops a mathematical model of the drone corridor and proposes a brute force algorithm that leverages A* search to meet the quality of service (QoS) requirements of the corridor by choosing the minimal set of BS locations from a pre-determined initial set. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: September 20, 2021

2021 article

Secure 5G Network for a Nationwide Drone Corridor

2021 IEEE AEROSPACE CONFERENCE (AEROCONF 2021).

By: A. Bhuyan*, I. Guvenc n, H. Dai n, M. Sichitiu n, S. Singh n, A. Rahmati n, S. Maeng n

TL;DR: This paper presents research findings in the following areas critical to validating the effectiveness of providing required 5G access to the drones with security, reliability, and spectral efficiency and plans for future research to provide further scientific basis for the proposed cellular drone network. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: September 13, 2021

2019 journal article

A Lightweight Localization Solution for Small, Low Resources WSNs

Journal of Sensor and Actuator Networks, 8(2), 26.

By: H. Xiong n & M. Sichitiu n

author keywords: wireless sensor network; radio signal strength (RSS); cooperative localization; information fusion
TL;DR: This work proposes KickLoc, a fully distributed scheme, which considers the uncertainty of the distance measurements to minimize localization errors introduced from the range measurement, and leverages information from all neighboring nodes for better position estimations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: May 14, 2019

2019 article

Clearer than Mud: Extending Manufacturer Usage Description (MUD) for Securing IoT Systems

INTERNET OF THINGS - ICIOT 2019, Vol. 11519, pp. 43–57.

By: S. Singh n, A. Atrey n, M. Sichitiu n & Y. Viniotis n

author keywords: Internet of Things; Security; Manufacturer Usage Description (MUD); Clustering
TL;DR: A learning-based system that captures and demodulates wireless packets from IoT devices over a period of time, extracts the features specified in the normal behaviour specification, and uses a learning algorithm to create a normal model of each device. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: July 13, 2020

2019 journal article

Fog Radio Access Network: A New Wireless Backhaul Architecture for Small Cell Networks

IEEE ACCESS, 7, 14150–14161.

By: Z. Li n, M. Sichitiu n & X. Qiu*

author keywords: Wireless backhaul network; fog computing; multi-BS cooperation; transmission coordination; small cell network; backhauling strategy
TL;DR: A novel wireless backhauling strategy for small-cell networks based on dynamic base station (BSs) cooperation, which is called the fog-radio access network (F-RAN), which provides the highest throughput for cell edge users while maintaining the same performance in most of the other areas. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2019

2019 journal article

Physical Layer Performance of a Cooperative Amplify and Forward Scheme for MIMO WLANs

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 68(7), 6709–6720.

By: Y. Qi n & M. Sichitiu n

author keywords: Cooperative Systems; diversity; fading channels; MIMO systems; relays; transceivers; wireless LAN
TL;DR: A novel cooperative amplify and forward (CAF) architecture for MIMO WLANs to improve their coverage and transmission rates, without requiring any modifications in the IEEE 802.11 standards at the clients is proposed. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 12, 2019

2018 journal article

Autonomous Tracking of Intermittent RF Source Using a UAV Swarm

IEEE ACCESS, 6, 15884–15897.

By: F. Koohifar n, I. Guvenc n & M. Sichitiu n

author keywords: Cramer Rao lower bound; drone; Fisher information; intermittent transmitter; jammer; localization; steepest descent; tracking; UAV
TL;DR: The localization of a radio-frequency transmitter with intermittent transmissions is considered via a group of unmanned aerial vehicles (UAVs) equipped with omnidirectional received signal strength sensors, and the steepest descent path planning outperforms the bioinspired path planning by an order of magnitude. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2018 journal article

BUR-GEN: A Bursty Packet Generator for Vehicular Communication Channels

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 67(11), 10232–10242.

By: S. Carpenter n & M. Sichitiu n

author keywords: Channel models; connected vehicles; vehicle safety; vehicular ad hoc networks; wireless networks
TL;DR: A bursty packet generation algorithm called BUR-GEN is proposed, which is evaluated through simulation and, along with several common VCMs, compared to the PRR, inter-packet gap (IPG), and consecutive reception run length (CRRL) of the safety pilot model deployment, a large-scale DSRC-based measurement campaign. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: December 3, 2018

2018 journal article

Detection, Tracking, and Interdiction for Amateur Drones

IEEE Communications Magazine.

Mihail Sichitiu

TL;DR: The goal of this survey article is to study various potential cyber and physical threats that may arise from the use of UAVs, and subsequently review various ways to detect, track, and interdict malicious drones. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
Source: ORCID
Added: September 18, 2020

2017 article

Evaluating the Accuracy of Vehicular Channel Models in a Large-Scale DSRC Test

2017 IEEE 14TH INTERNATIONAL CONFERENCE ON MOBILE AD HOC AND SENSOR SYSTEMS (MASS), pp. 241–249.

By: S. Carpenter n & M. Sichitiu n

author keywords: VANET; V2V; Field operational test; Safety Pilot Model Deployment; DSRC
TL;DR: Evaluating vehicular channel models in terms of real-world, large-scale experiments helps researchers better understand actual behaviors and allows for the development of new and/or improved models that more accurately reflect reality. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

NEAT: Network link emulation with adaptive time dilation

JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING, 104, 88–98.

By: H. Lee n, M. Sichitiu n & D. Thuente n

author keywords: Network emulation; Time dilation; Virtual time; Distributed system; Virtual machines; KVM; QEMU
TL;DR: This paper presents networking links in a large emulated system employing adaptive time dilation, and measures the delay and throughput of the virtual links under variable system loads. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

On the Accuracy of Pairwise Time Synchronization

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 16(4), 2664–2677.

By: F. Gong n & M. Sichitiu n

author keywords: Wireless sensor networks; time synchronization modelling and performance; drift and offset estimation; linear regression based estimation
TL;DR: This work quantitatively model synchronization performance as a function of the relevant parameters, such as the beacon interval, the number of beacons per synchronization period, and the measurement point, and analyzes the synchronization error for different state-of-the-art pairwise synchronization schemes, using application layer or medium access control layer timestamping. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Temperature compensated Kalman distributed clock synchronization

AD HOC NETWORKS, 62, 88–100.

By: F. Gong n & M. Sichitiu n

author keywords: Wireless sensor networks; Distributed time synchronization; Temperature compensated Kalman filter
TL;DR: This work proposes a temperature-compensated Kalman based distributed synchronization protocol (TKDS) using a two-way sender-receiver synchronization scheme, to achieve high synchronization accuracy while modelling the clock skew change based on its physical characteristics. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

A Biobotic Distributed Sensor Network for Under-Rubble Search and Rescue

COMPUTER, 49(5), 38–46.

By: A. Bozkurt n, E. Lobaton n & M. Sichitiu n

TL;DR: A video in which authors Alper Bozkurt, Edgar Lobaton, and Mihail Sichitiu demonstrate the acoustic steering of roach biobots to search for disaster victims trapped under rubble. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2016 conference paper

Analysis of packet loss in a large-scale DSRC field operational test

5th IFIP International Conference On Performance Evaluation And Modeling In Wired And Wireless Networks Pemwn 16.

By: S. Carpenter n & M. Sichitiu n

TL;DR: The packet-level performance of safety messages exchanged among vehicular encounters is characterized using a large empirical dataset collected from a field operational test of nearly 3000 vehicles, to better understand the real-world operating conditions of the vehicular wireless channel. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 journal article

CESP: A Low-Power High-Accuracy Time Synchronization Protocol

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 65(4), 2387–2396.

By: F. Gong n & M. Sichitiu n

author keywords: Drift and offset estimation; time-synchronization algorithm and performance; wireless sensor networks (WSNs)
TL;DR: The proposed time-synchronization protocol achieves high synchronization accuracy similar to the classic reference broadcast synchronization (RBS) protocol without requiring packet-level timestamping but with a significant reduction on communication overhead to achieve low power consumption. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 conference paper

Characterization of RSS variability for biobot localization using 802.15.4 radios

2016 ieee topical conference on wireless sensors and sensor networks (wisnet), 1–3.

By: H. Xiong n, T. Latif n, E. Lobaton n, A. Bozkurt n & M. Sichitiu n

TL;DR: This paper investigates RSS variability and its suitability for biobotic localization of mobile sensor nodes in the future. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 conference paper

KickLoc: Simple, distributed localization for wireless sensor networks

Proceedings 2016 ieee 13th international conference on mobile ad hoc and sensor systems (mass 2016), 228–236.

By: H. Xiong n & M. Sichitiu n

TL;DR: This work proposes KickLoc, which is a fully distributed solution that takes the reliability of distance measurements into account to mitigate errors resulting from distance measurement errors, and fuses information from all neighboring nodes to provide position estimates. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2016 conference paper

Using liquid metal alloy (EGaIn) to electrochemically enhance SS stimulation electrodes for biobotic applications

2016 38th annual international conference of the ieee engineering in medicine and biology society (embc), 2141–2144.

By: T. Latif n, F. Gong n, M. Dickey n, M. Sichitiu n & A. Bozkurt n

MeSH headings : Alloys / chemistry; Biotechnology / instrumentation; Electric Impedance; Electrodes; Gallium / chemistry; Indium / chemistry; Robotics / instrumentation; Stainless Steel / chemistry
TL;DR: This study looks into the potential of using a liquid metal alloy, eutectic gallium-indium (EGaIn), as a means of enhancing properties of the stainless steel electrodes and its first time consideration as in vivo neurostimulation electrodes. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2015 journal article

High-performance emulation of heterogeneous systems using adaptive time dilation

INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS, 29(2), 166–183.

By: H. Lee n, M. Sichitiu n & D. Thuente n

author keywords: Emulation; time dilation; virtual time; virtualization; virtual machines; testbeds; heterogeneous systems; distributed applications
TL;DR: This work presents an approach using adaptive time dilation to emulate large-scale distributed systems composed of heterogeneous machines and Operating Systems (OSs) and in the implementation, VMs are globally synchronized. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

MCAS-MAC: A multichannel asynchronous scheduled MAC protocol for wireless sensor networks

COMPUTER COMMUNICATIONS, 56, 98–107.

By: J. Lim*, B. Jang* & M. Sichitiu n

author keywords: MAC; Duty cycling; AS-MAC; Wireless sensor networks; MCAS-MAC
TL;DR: This paper presents a multichannel asynchronous scheduled MAC protocol, called MCAS-MAC, which inherits the basic asynchronous scheduling operation from AS-MAC and adds back-to-back packet transmissions andMultichannel support for high traffic dense WSN. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

N-body: A social mobility model with support for larger populations

AD HOC NETWORKS, 25, 185–196.

By: C. Zhao n, M. Sichitiu n & I. Rhee n

author keywords: Mobility model; Network generation; Ad hoc networks
TL;DR: Through simulation, the N-body model is shown to be capable of synthesizing the group forming behavior similar to that observed from sample traces, and to be able to capture real world mobility features from traces of a small number of nodes and synthesize traces that have similar features. (via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Optimal Resource Allocation in Random Access Cooperative Cognitive Radio Networks

IEEE TRANSACTIONS ON MOBILE COMPUTING, 14(6), 1245–1258.

By: M. Pandian n, M. Sichitiu n & H. Dai n

author keywords: Cooperative cognitive radio networks; WLAN optimization; Wi-Fi; spectrum leasing; game theory
TL;DR: Simulation results show that the users achieve higher throughput via the proposed CCRN scheme, thus providing the mobile operator and the private Wi-Fi provider with incentives for cooperation. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 article

Biobotic Insect Swarm based Sensor Networks for Search and Rescue

(I. Kadar, Ed.). SIGNAL PROCESSING, SENSOR/INFORMATION FUSION, AND TARGET RECOGNITION XXIII, Vol. 9091.

By: A. Bozkurt n, E. Lobaton n, M. Sichitiu n, T. Hedrick*, T. Latif n, A. Dirafzoon n, E. Whitmire n, A. Verderber n ...

Ed(s): I. Kadar

author keywords: Insect biobots; Seach and rescue; Neural engineering; Swarm robotics; Topological mapping; Sensor networks
TL;DR: This work has benefitted from recent developments in neural engineering and neuromuscular stimulation research to fuse the locomotory advantages of insects with the latest developments in wireless networking technologies to enable biobotic insect agents to function as search-and-rescue agents. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2014 conference paper

Integrated simulation and emulation using adaptive time dilation

Proceedings of the 2nd ACM SIGSIM/PADS conference on Principles of advanced discrete simulation - SIGSIM-PADS '14.

Mihail Sichitiu

author keywords: Simulation; Emulation; Virtualization; Time Dilation; ns-3; KVM
TL;DR: This approach uses time dilation to reduce simulation delays and thus increasing the accuracy of the integrated simulation and emulation system, and dynamically controls the timeDilation factor to avoid system overloads for both the simulation and the emulation components. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: ORCID
Added: September 18, 2020

2013 journal article

An asynchronous scheduled MAC protocol for wireless sensor networks

COMPUTER NETWORKS, 57(1), 85–98.

By: B. Jang*, J. Lim* & M. Sichitiu n

author keywords: Wireless sensor networks; Medium access control; Duty cycling; Low power listening; AS-MAC; SCP-MAC
TL;DR: An energy efficient MAC protocol for WSNs is presented that avoids overhearing and reduces contention and delay by asynchronously scheduling the wakeup time of neighboring nodes and an energy consumption analysis for multi-hop networks is provided. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

IEEE 802.11 Saturation Throughput Analysis in the Presence of Hidden Terminals

IEEE-ACM TRANSACTIONS ON NETWORKING, 20(2), 557–570.

By: B. Jang n & M. Sichitiu n

author keywords: CSMA/CA; hidden terminal; IEEE 802.11; infrastructure case; RTC/CTS; saturation throughput
TL;DR: An accurate new analytical saturation throughput model for the infrastructure case of IEEE 802.11 in the presence of hidden terminals is presented and simulation results show that the model is accurate in a wide variety of cases. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 article

Contact time in random walk and random waypoint: Dichotomy in tail distribution

Zhao, C., & Sichitiu, M. L. (2011, March). AD HOC NETWORKS, Vol. 9, pp. 152–163.

By: C. Zhao n & M. Sichitiu n

author keywords: Mobile Ad Hoc Network; Random walk; Random waypoint; Contact time; Dichotomy
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Optimal Max-Min Fair Resource Allocation in Multihop Relay-Enhanced WiMAX Networks

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 60(8), 3907–3918.

By: Y. Kim n & M. Sichitiu n

author keywords: IEEE 802.16j; scheduling
TL;DR: An optimal resource allocation scheme is proposed for WiMAX networks that are enhanced with nontransparent relay stations (RSs) and the highest cell throughput can be achieved by the proposed optimal scheme while maintaining the fairness and lower outage performance of the orthogonal scheme at a higher computational cost. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Optimal Placement of Transparent Relay Stations in 802.16j Mobile Multihop Relay Networks

IEICE TRANSACTIONS ON COMMUNICATIONS, E94B(9), 2582–2591.

By: Y. Kim n & M. Sichitiu n

author keywords: WiMAX; relay networks; optimal placement
TL;DR: A closed-form approximation for the optimal location of RS inside a cell is provided and a numerical analysis of a number of case studies validates the closed- form approximation. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 conference paper

Optimal resource allocation in multihop relay-enhanced WiMAX networks

2011 IEEE Wireless Communications and Networking Conference (WCNC), 737–742.

By: Y. Kim n & M. Sichitiu n

TL;DR: This paper considers deploying non-transparent relay stations (RSs) that transmit on the same carrier frequency as the base station (BS) for the purpose of coverage extension, and proposes an optimal scheduling scheme that preserves fairness among active SSs. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2010 conference paper

Fairness schemes in 802.16j mobile multihop relay networks

2010 ieee global telecommunications conference globecom 2010.

By: Y. Kim n & M. Sichitiu n

TL;DR: This paper considers deploying non-transparent relay stations for coverage extension and study the issue of fairness schemes in WiMAX networks, and proposes a new scheduling scheme, named subsection fairness, that can achieve better throughput than traditional fairness schemes by maximizing bandwidth utilization. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2010 journal article

Feasibility of optimally assigning channels by exhaustive search in commercial multi-radio wireless mesh networks

TELECOMMUNICATION SYSTEMS, 44(1-2), 171–178.

By: W. Xie*, Y. Zhang*, M. Sichitiu n, L. Fu* & Y. Yao*

author keywords: Wireless mesh networks; Channel assignment; Exhaustive search; Combinatorics
TL;DR: It is shown that, given certain computing power, it is feasible to optimally solve channel assignment problems in small-scale and medium-scale commercial multi-radio WMNs, and approximation algorithms are not needed for most of current commercial WMNs. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

RaPTEX: Rapid Prototyping Tool for Embedded Communication Systems

ACM TRANSACTIONS ON SENSOR NETWORKS, 7(1).

By: J. Lim n, B. Jang n, S. Yoon n, M. Sichitiu n & A. Dean n

author keywords: Design; Verification; Experimentation; Wireless sensor networks; rapid prototyping tool; analytical performance modeling; real code simulation; RaPTEX; TinyOS
TL;DR: The design and implementation of RaPTEX is presented, a rapid prototyping tool for embedded communication systems, especially well suited for wireless sensor networks (WSNs), consisting of three major subsystems: a toolbox, an analytical performance estimation framework, and an emulation environment. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 article

Modeling the effect of node synchronization times in ultra-wideband wireless networks

Taggart, C. S., Viniotis, Y., & Sichitiu, M. L. (2009, March). PERFORMANCE EVALUATION, Vol. 66, pp. 223–239.

By: C. Taggart n, Y. Viniotis n & M. Sichitiu n

author keywords: Ultra-wideband; Average delay; Simulation; Servers with vacations
TL;DR: The development and use of mathematical and simulation models are described to investigate the impact of dropping and reacquiring links between nodes on average packet delay and the performance of the alternative strategy of forwarding packets through intermediate nodes without breaking the established wireless links is considered. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

MRP: Wireless mesh networks routing protocol

COMPUTER COMMUNICATIONS, 31(7), 1413–1435.

By: J. Jun n & M. Sichitiu n

author keywords: wireless mesh networks; routing protocol; tree formation
TL;DR: Results show that, for WMNs, the proposed routing protocol outperforms general purpose MANET protocols in terms of routing overhead, packet delivery ratio, network throughput, end-to-end delay, and average hop-count. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Z-MAC: A hybrid MAC for wireless sensor networks

IEEE-ACM TRANSACTIONS ON NETWORKING, 16(3), 511–524.

By: I. Rhee n, A. Warrier n, M. Aia n, J. Min n & M. Sichitiu n

author keywords: CSMA; MAC; TDMA; wireless sensor networks
TL;DR: Z-MAC is a hybrid MAC protocol for wireless sensor networks that combines the strengths of TDMA and CSMA while offsetting their weaknesses and achieves high channel utilization under high contention and reduces collision among two-hop neighbors at a low cost. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 chapter

Reliable Geographical Multicast Routing in Vehicular Ad-Hoc Networks

In Lecture Notes in Computer Science (pp. 315–325).

By: M. Kihl*, M. Sichitiu n, T. Ekeroth* & M. Rozenberg*

TL;DR: A new multicast routing protocol specifically designed for VANETs is proposed, its purpose is to provide a routing service for a future reliable transport protocol and its performance is evaluated using realistic network and traffic models. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: March 1, 2020

2007 journal article

Tiny-sync: Tight time synchronization for wireless sensor networks

ACM TRANSACTIONS ON SENSOR NETWORKS, 3(2).

By: S. Yoon n, C. Veerarittiphan n & M. Sichitiu n

author keywords: algorithms; design; experimentation; performance; sensor networks; time synchronization
TL;DR: A proposed time synchronization method relevant for wireless sensor networks features minimal complexity in network bandwidth, storage as well as processing, and can achieve good accuracy. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Adaptive ad hoc self-organizing scheduling for quasi-periodic sensor network lifetime

COMPUTER COMMUNICATIONS, 29(17), 3366–3384.

By: S. Visweswara n, R. Dutta n & M. Sichitiu n

author keywords: sensor networks; lifetime; optimization; scheduling; lifetime extension; power conservation; power aware sensor networks
TL;DR: This paper describes an algorithm which allows the nodes to learn the behavior of each other by only observing the transmission behaviors, and from this derive the schedule without external help. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Asymptotic stability of congestion control systems with multiple sources

IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 51(2), 292–298.

By: M. Sichitiu n & P. Bauer*

author keywords: congestion control; multiple sources; stability; time-variant system
TL;DR: The proof that for congestion control systems with linear controllers, if the system is stable for a single source it will be stable for an arbitrary large number of sources is based on a well-known necessary and sufficient stability test. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Dissecting the routing architecture of self-organizing networks

IEEE WIRELESS COMMUNICATIONS, 13(6), 98–104.

By: M. Amorim*, F. Benbadis*, S. Fdida*, M. Sichitiu n & Y. Viniotis n

TL;DR: This article suggests that routing should be thought of as a combination of four main architectural components, namely, addressing, dissemination, discovery, and forwarding, and concludes that routing architectures should be scenario-driven. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 conference paper

Scalable OSPF updates for MANETs

Globecom 2006 - 2006 ieee global telecommunications conference.

By: J. Jun & M. Sichitiu

Source: NC State University Libraries
Added: August 6, 2018

2005 chapter

Benefits of multiple battery levels for the lifetime of large wireless sensor networks

In Networking 2005: Networking technologies, services, and protocols: Performance of computer and communication networks: Mobile and wireless communication systems: 4th International IFIP-TC6 Networking Conference, Waterloo, Canada, May 2-6, 2005: Proceedings (Lecture notes in computer science; 3462) (Vol. 3462, pp. 1440–1444).

By: M. Sichitiu n & R. Dutta n

TL;DR: A design problem involving optimizing the network lifetime using no more than a given number of distinct battery levels is solved, and the results from the model are verified by direct simulation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2004 conference paper

Cross-layer scheduling for power efficiency in wireless sensor networks

IEEE INFOCOM 2004.

Mihail Sichitiu

TL;DR: This paper proposes a deterministic, schedule-based energy conservation scheme that enables time-synchronized sensors to be awake only when necessary, and is appropriate for large sensor networks. (via Semantic Scholar)
Source: ORCID
Added: September 18, 2020

2003 journal article

The effect of uncertain time-variant delays in ATM networks with explicit rate feedback: A control theoretic approach

IEEE-ACM TRANSACTIONS ON NETWORKING, 11(4), 628–637.

By: M. Sichitiu n, P. Bauer* & K. Premaratne*

TL;DR: A new, more realistic model for the available bit rate traffic class in ATM network congestion control with explicit rate feedback is introduced and analyzed, showing that an equilibrium in the buffer occupancy is impossible to achieve in the presence of time-variant forward path delays. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2003 journal article

The nominal capacity of wireless mesh networks

IEEE WIRELESS COMMUNICATIONS, 10(5), 8–14.

By: J. Jun n & M. Sichitiu n

TL;DR: This article provides exact upper bounds on the throughput of any node in a WMN for a given topology and the set of active nodes, and shows that for WMNs the throughput decreases as O(1/n), where n is the total number of nodes in the network. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2003 journal article

Total delay compensation in LAN control systems and implications for scheduling

INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 34(10-11), 599–605.

By: P. Bauer*, C. Lorand*, M. Sichitiu n & K. Premaratne*

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Queue control under time-variant delays: A discrete time system approach

Journal of Circuits, Systems, and Computers, 11(2), 187–211.

By: P. Bauer*, M. Sichitiu n & K. Premaratne*

TL;DR: It is shown that a linear system-delay interface is a system theoretic necessity for the construction of composite linear systems with time-variant delays and two interfaces are presented and used to obtain new, simple to check stability results for queue control systems. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

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