Works (8)

Updated: September 20th, 2023 05:00

2023 journal article

Base Station Antenna Uptilt Optimization for Cellular-Connected Drone Corridors

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 59(4), 4729–4737.

By: S. Maeng n, M. Chowdhury n, I. Guvenc n, A. Bhuyan* & H. Dai n

author keywords: Drones; Antennas; Interference; Probability; Power system reliability; Communication system security; Signal to noise ratio; Antenna uptilt; drone corridor; national airspace (NAS); outage probability; unmanned aerial vehicle (UAV); unmanned aerial vehicle traffic management
TL;DR: This article considers the use of additional uptilted antennas at each cellular BS and optimize the uptilt angle to maximize the wireless coverage probability across a given drone corridor and characterize the optimal value of the antenna uptilt angles for a given antenna pattern as well as the minimum/maximum altitudes of the drone corridor. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 9, 2023

2023 article

Channel Rank Improvement in Urban Drone Corridors Using Passive Intelligent Reflectors

2023 IEEE AEROSPACE CONFERENCE.

By: E. Ozturk n, C. Anjinappa n, F. Erden n, M. Chowdhury n, I. Guvenc n, H. Dai n, A. Bhuyan*

TL;DR: The results at 6 GHz, 28 GHz, and 60 GHz show that the proposed approach increases the average rates for all frequency bands for a given drone corridor when compared with the environment with no IRSs present, and IRS-aided channels perform close to each other at sub-6 and mmWave bands. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 18, 2023

2023 journal article

Mobility State Detection of Cellular-Connected UAVs Based on Handover Count Statistics

IEEE OPEN JOURNAL OF VEHICULAR TECHNOLOGY, 4, 490–504.

By: M. Chowdhury n, P. Sinha n, K. Mahler & I. Guvenc n

author keywords: 3GPP; advanced aerial mobility (AAM); antenna radiation; Cramer-Rao lower bound; estimation; minimum variance unbiased (MVU); unmanned aerial vehicle (UAV)
TL;DR: An approximation to the probability mass function of handover count (HOC) as a function of a cellular-connected UAV's height and velocity, HOC measurement time window, and different ground base station (GBS) densities is introduced. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 18, 2023

2021 journal article

A Deep Learning Based Modeling of Reconfigurable Intelligent Surface Assisted Wireless Communications for Phase Shift Configuration

IEEE Open Journal of the Communications Society, 2, 262–272.

By: B. Sheen*, J. Yang*, X. Feng* & M. Chowdhury n

TL;DR: A machine learning (ML) based modeling approach that learns the interactions between the phase shifts of the RIS elements and receiver (Rx) location attributes and uses them to predict the achievable rate directly without using channel state information (CSI) or received pilots. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: February 12, 2021

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 article

CHANNEL RECONSTRUCTION WITH LIMITED FEEDBACK IN INTELLIGENT SURFACE AIDED COMMUNICATIONS

2021 IEEE 94TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2021-FALL).

By: N. Prasad*, M. Chowdhury n & X. Qi*

author keywords: Low-Rank Recovery; Non-Convex; Proximal Distance Algorithm; Sparsity; Subspace
TL;DR: This work proposes novel channel reconstruction formulations for IRS-assisted communications where the IRS panel has only passive elements and the intended receiver provides just signal strength feedback reports and designs efficient proximal distance based algorithms to reconstruct the effective channel. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: May 10, 2022

2021 article

Channel Reconstruction in Intelligent Surface aided Communications

2021 INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS & NETWORKS (COMSNETS), pp. 531–539.

By: N. Prasad*, M. Chowdhury n & X. Qi*

TL;DR: This work proposes novel channel reconstruction schemes which do not require any active elements on the IRS panel and proposes an algorithm for subspace estimation and also provides a recipe for designing IRS pattern vectors that can be gainfully used during the training phase. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 28, 2021

2020 journal article

3-D Trajectory Optimization in UAV-Assisted Cellular Networks Considering Antenna Radiation Pattern and Backhaul Constraint

IEEE Transactions on Aerospace and Electronic Systems, 56(5), 3735–3750.

By: M. Chowdhury n, S. Maeng n, E. Bulut* & I. Guvenc n

author keywords: Three-dimensional displays; Antenna radiation patterns; Trajectory; Cellular networks; Interference; Relays; Unmanned aerial vehicles; Antenna radiation; backhaul; dynamic programming (DP); trajectory; unmanned aerial vehicle (UAV)
TL;DR: It is shown that the 3-D optimal paths can introduce significant network performance gain over the trajectories with fixed UAV heights, and be used to improve the cellular connectivity of ground users by acting as a relay. (via Semantic Scholar)
Source: ORCID
Added: October 13, 2020

Employment

Updated: March 3rd, 2019 02:22

North Carolina State University Raleigh, NC, US
Graduate Research Assistant Electrical and Computer Engineering

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