Works Published in 2015
Displaying works 81 - 100 of 479 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2015 conference paper
Ergodic capacity in mmWave ad hoc network with imperfect beam alignment
Proceedings - IEEE Military Communications Conference MILCOM, 2015-December, 1479–1484.
Contributors: A. Thornburg* & R. Heath*
TL;DR:
This paper quantifies both the ergodic capacity of a mmWave ad hoc network with perfect alignment and the lost capacity when error is introduced, and shows that even relatively small errors in alignment can lead to significant er godic capacity reduction.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 journal article
Index Coding With Coded Side-Information
IEEE Communications Letters, 19(3), 319–322.
author keywords: Index coding and coded side-information
TL;DR:
It is shown that the optimal binary vector index code length is equal to the minimum rank (minrank) of a matrix whose elements consist of the sets of desired packet indices and side-information encoding matrices.
(via Semantic Scholar)
arxiv.org (repository)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Energy coverage in millimeter wave energy harvesting networks
2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings.
Contributors: T. Khan *, A. Alkhateeb * & R. Heath*
TL;DR:
This work analyzes the energy harvesting performance at receivers powered by a mmWave cellular network and suggests that mmWave energy harvesting could provide a substantial performance boost compared to lower frequency solutions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Dictionary-free hybrid precoders and combiners for mmWave MIMO systems
IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2015-August, 151–155.
Contributors: R. Mendez-Rial *, C. Rusu *, N. Gonzalez-Prelcic * & R. Heath*
TL;DR:
A low complexity hybrid precoding design for the architecture based on phase shifters is proposed, a greedy algorithm based on the orthogonal matching pursuit algorithm but replacing the costly correlation operations over a dictionary with the element-wise normalization of the first singular vector of the residual.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Compressed sensing based multi-user millimeter wave systems: How many measurements are needed?
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 2015-August, 2909–2913.
Contributors: A. Alkhateeby*, G. Leusz* & R. Heath*
TL;DR:
This paper proposes and evaluates a downlink system operation for multi-user mmWave systems based on compressed sensing channel estimation and conjugate analog beamforming, and shows how many compressed sensing measurements are needed to approach the perfect channel knowledge performance.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Enabling 5G: Energy and spectrally efficient communication systems
Transactions on Emerging Telecommunications Technologies, 26(1), 1–2.
Contributors: R. Tafazolli*, S. Palazzo *, M. Payarõ * & R. Heath*
TL;DR:
This Special Issue is to present some of the most promising and novel approaches in analyzing, designing and optimizing energy and spectrum constrained 5G communication systems focusing on the physical, link, and network layer aspects.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Distributed space-time interference alignment with moderately delayed CSIT
IEEE Transactions on Wireless Communications, 14(2), 1048–1059.
Contributors: N. Lee *, R. Tandon * & R. Heath*
author keywords: Space-time interference alignment; delayed CSIT; interference networks
TL;DR:
A major implication of derived results is that distributed and moderately delayed CSIT is useful to strictly improve the sum-DoF over the case of no CSI at the transmitter in a certain class of interference networks.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 journal article
Coverage and rate analysis for millimeter-wave cellular networks
IEEE Transactions on Wireless Communications, 14(2), 1100–1114.
Contributors: T. Bai* & R. Heath*
author keywords: Millimeter wave; fifth generation cellular networks; stochastic geometry; performance analysis
TL;DR:
A general framework to evaluate the coverage and rate performance in mmWave cellular networks is proposed, and the results show that dense mmWave networks can achieve comparable coverage and much higher data rates than conventional UHF cellular systems, despite the presence of blockages.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Distributed real-time implementation of interference alignment with analog feedback
IEEE Transactions on Vehicular Technology, 64(8), 3513–3525.
Contributors: S. Lee*, A. Gerstlauer * & R. Heath*
author keywords: Interference alignment (IA); prototyping
TL;DR:
This paper presents the first investigation of real-time IA performance on a fully distributed 2 $\times$ 2 multiple-input–multiple-output (MIMO) prototype system with three physically independent user pairs and demonstrates that the theoretical multiplexing gain can be reached in practical systems with a constant sum rate loss that remains within 5 bits/Hz/s compared with an ideal simulation.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Delay-constrained video transmission: Quality-driven resource allocation and scheduling
IEEE Journal on Selected Topics in Signal Processing, 9(1), 60–75.
Contributors: A. Khalek*, C. Caramanis* & R. Heath*
author keywords: Resource allocation; statistical QoS; rate distortion theory; perceptual video quality; effective capacity
TL;DR:
This work considers a multiuser setup whereby different users have (possibly different) delay QoS constraints, and derives the resource allocation policy that maximizes the sum video quality and applies to any quality metric with concave rate-quality mapping.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Channel estimation and hybrid combining for mmWave: Phase shifters or switches?
2015 Information Theory and Applications Workshop, ITA 2015 - Conference Proceedings, 90–97.
Contributors: R. Mendez-Rial*, C. Rusu *, A. Alkhateeb *, N. Gonzalez-Prelcic * & R. Heath*
TL;DR:
A different hybrid architecture is proposed, which simplifies the hardware at the receiver by replacing the phase shifters with switches and a new approach for compressed sensing based channel estimation for the hybrid architectures is presented.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Base station cluster patterns for semi-static multi-cell cooperation in irregular network topologies
2015 23rd European Signal Processing Conference, EUSIPCO 2015, 2441–2445.
TL;DR:
The key idea of the proposed clustering is to use the 2nd-order Voronoi region to form BS clusters that are mapped into a particular cluster pattern by exploiting the edge-coloring in graph theory.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Channel estimation in millimeter wave MIMO systems with one-bit quantization
Conference Record - Asilomar Conference on Signals, Systems and Computers, 2015-April, 957–961.
Contributors: J. Mo *, P. Schniter *, N. Prelcic * & R. Heath*
TL;DR:
A modified EM algorithm is proposed that exploits sparsity and has better performance than the conventional EM algorithm and is presented as a solution to the channel estimation problem for millimeter wave MIMO systems with one-bit analog-to-digital converters.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Capacity Analysis of One-Bit Quantized MIMO Systems with Transmitter Channel State Information
IEEE Transactions on Signal Processing, 63(20), 5498–5512.
author keywords: Analog-to-digital convertor; millimeter wave; MIMO channel; one-bit quantization
TL;DR:
This paper analyzes the flat fading multiple-input multiple-output (MIMO) channel with one-bit ADCs and derives the exact channel capacity and proposes an efficient method to design the input symbols to approach the capacity achieving solution.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2015 conference paper
An indoor correlated shadowing model
2015 IEEE Global Communications Conference, GLOBECOM 2015.
Contributors: X. Zhang *, F. Baccelli* & R. Heath*
TL;DR:
This model gives the first tractable mathematical abstraction to indoor physical environments where wireless signals are shadowed by (common) walls and develops a formula for success probabilities of a transmission attempt between two given rooms.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Augmented covariance estimation with a cyclic approach in DOA
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 2015-August, 2784–2788.
Contributors: R. Mendez-Rial *, N. Gonzalez-Prelcic * & R. Heath*
TL;DR:
The new method exploits the periodicity of the covariance lags when the DOAs are assumed on a discrete grid with a certain resolution and achieves twice the resolution of typical methods such as the direct augmentable approach or forward backward spatial smoothing.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Asymptotic SINR for millimeter wave massive MIMO cellular networks
IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2015-August, 620–624.
Contributors: T. Bai* & R. Heath*
TL;DR:
A stochastic geometry framework for evaluating the performance in large-scale mmWave massive MIMO networks is proposed and numerical results indicate a fast convergence in the SINR distribution to its asymptotic equivalence in dense mmWave networks.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 journal article
Artificial-noise-aided secure multi-antenna transmission with limited feedback
IEEE Transactions on Wireless Communications, 14(5), 2742–2754.
Contributors: X. Zhang *, M. McKay *, X. Zhou * & R. Heath*
author keywords: Artificial noise; adaptive transmission; limited feedback; physical-layer security; power allocation
TL;DR:
This work proposes an adaptive transmission strategy that judiciously selects the wiretap coding parameters, as well as the power allocation between the artificial noise and the information signal, and finds that 8 feedback bits per transmit antenna is sufficient to achieve approximately 90% of the throughput attainable with perfect feedback.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Analysis of self-body blocking effects in millimeter wave cellular networks
Conference Record - Asilomar Conference on Signals, Systems and Computers, 2015-April, 1921–1925.
Contributors: T. Bai* & R. Heath*
TL;DR:
A mathematical model for self-body blocking is proposed, allowing for position changes, and used to compute signal-to-interference-plus-noise ratio (SINR) distributions with two possible user association rules, and characterize how self- body blocking impacts the SINR coverage.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2015 conference paper
Achievable rates of multi-user millimeter wave systems with hybrid precoding
2015 IEEE International Conference on Communication Workshop, ICCW 2015, 1232–1237.
Contributors: A. Alkhateeb *, R. Heath* & G. Leus *
TL;DR:
A low complexity hybrid analog/digital precoding algorithm for downlink multi-user mmWave systems and shows its asymptotic optimality at large numbers of antennas, and makes useful insights for more general cases.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.
Certain data included herein are derived from the Web of Science© and InCites© (2024) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.
