Works Published in 2013
Displaying works 61 - 80 of 383 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2013 journal article
Joint transmit precoding for the relay interference broadcast channel
IEEE Transactions on Vehicular Technology, 62(3), 1201–1215.
Contributors: K. Truong * & R. Heath Jr.
author keywords: Cooperative systems; distributed algorithms; interference channels; multiple-input multiple-output (MIMO); relay communication; relay interference broadcast channel; wireless communication
TL;DR:
An algorithm for designing the linear transmit precoders at the transmitters and relays of the relay interference broadcast channel, which is a generic model for relay-based cellular systems, to maximize the end-to-end sum rates is proposed.
(via Semantic Scholar)
arxiv.org (repository)
Source: ORCID
Added: September 11, 2020
2013 conference paper
HF MIMO NVIS measurements with co-located dipoles for future tactical communications
Proceedings - IEEE Military Communications Conference MILCOM, 1250–1255.
Contributors: R. Daniels, S. Peters & R. Heath Jr.
TL;DR:
MIMO capabilities in near vertical incidence sky-wave (NVIS) propagation through a measurement campaign shows that MIMO is a game changer for HF NVIS with up to 2.27 times higher data rate, up to 9 times less transmit power, and more than 3 times fewer link failures.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 conference paper
General chairs' welcome
2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings.
Contributors: R. Heath Jr. & A. Tewfik*
TL;DR:
The IEEE Global Conference on Signal and Information Processing (GlobalSIP) Organizing Committee would like to cordially welcome you to Austin, Texas, known as the Live Music Capital of the World.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Coverage in dense millimeter wave cellular networks
Conference Record - Asilomar Conference on Signals, Systems and Computers, 2062–2066.
Contributors: T. Bai* & R. Heath Jr.
TL;DR:
The results show that the average cell size should scale with the average size of the line-of-sight region to maintain the same coverage probability in a dense network, and that the optimum base station density should be dense enough but not too dense.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
Cooperative algorithms for MIMO amplify-and-forward relay networks
IEEE Transactions on Signal Processing, 61(5), 1272–1287.
Contributors: K. Truong *, P. Sartori* & R. Heath Jr.
author keywords: Interference alignment; joint source-relay design; relay beamforming; relay interference channel; relay-aided interference alignment; two-hop interference channel
TL;DR:
Three cooperative algorithms are proposed to find suboptimal solutions for end-to-end sum-rate maximization problem in a multiple-antenna amplify-and-forward (AF) relay interference channel and achieve higher end-to-end sum-rates and multiplexing gains that existing strategies for AF relays, decode-and-forward relays, and direct transmission.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Base station cooperation with dynamic clustering in super-dense cloud-RAN
2013 IEEE Globecom Workshops, GC Wkshps 2013, 784–788.
Contributors: N. Lee *, R. Heath* , D. Morales-Jimenez * & A. Lozano *
TL;DR:
A downlink cellular model based on stochastic geometry is put forth in order to analyze the performance of base station (BS) cooperation with dynamic clustering in highly dense BS deployments and some of the benefits of cooperation can be characterized.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
Degrees of freedom for the two-cell two-hop MIMO interference channel: Interference-free relay transmission and spectrally efficient relaying protocol
IEEE Transactions on Information Theory, 59(5), 2882–2896.
author keywords: Interference channel; interference shaping; multihop; multiple-input-multiple-output (MIMO)
TL;DR:
It is shown that two cascaded interfering links can be decomposed into two independent parallel relay channels while sharing the spectrum, and a spectrally efficient relaying protocol is proposed that overcomes the loss due to half-duplex relaying constraint.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 journal article
Cascaded orthogonal space-time block codes for wireless multi-hop relay networks
Eurasip Journal on Wireless Communications and Networking, 2013(1).
Contributors: R. Vaze * & R. Heath Jr.
TL;DR:
C cascaded orthogonal space–time block code (COSTBC) is proposed for the case where the source and destination are equipped with multiple antennas and each relay stage has one or more multiple antenna relays
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
Antenna subset modulation for secure millimeter-wave wireless communication
IEEE Transactions on Communications, 61(8), 3231–3245.
Contributors: N. Valliappan *, A. Lozano * & R. Heath Jr.
author keywords: Antenna subset modulation; directional modulation; secure millimeter-wave communication; secrecy capacity
TL;DR:
This paper exploits the potential of large antenna arrays at millimeter-wave (mm-Wave) frequencies to develop a low-complexity directional modulation technique, Antenna Subset Modulation (ASM), for point-to-point secure wireless communication.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
Effects of channel aging in massive MIMO systems
Journal of Communications and Networks, 15(4), 338–351.
Contributors: K. Truong & R. Heath*
author keywords: Channel aging; channel prediction; large-scale antenna systems; massive multi-input multi-output (MIMO); outdated channel state information (CSI)
TL;DR:
Numerical results in a multiceli network show that massive MIMO works even with some channel variation and that channel prediction could partially overcome channel aging effects.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Coverage and area spectral efficiency in downlink random cellular networks with channel estimation error
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 4404–4408.
Contributors: Y. Wu*, M. McKay * & R. Heath*
TL;DR:
The optimal pilot-training length that maximizes the area spectral efficiency (ASE) in several asymptotic regimes is derived, and the dependence of this optimal length on the ratio between the user and base station densities is captured.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Coverage analysis for millimeter wave cellular networks with blockage effects
2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings, 727–730.
Contributors: T. Bai* & R. Heath Jr.
TL;DR:
An analytical framework to incorporate the blockage effects and evaluate the performance of mmWave cellular networks, in terms of coverage probability and achievable rate is proposed.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Degrees of freedom of completely-connected multi-way interference networks
IEEE International Symposium on Information Theory - Proceedings, 1571–1575.
TL;DR:
This paper considers a fully-connected interference network with a relay in which multiple users equipped with a single antenna want to exchange multiple unicast messages with other users in the network by sharing the relay equipped with multiple antennas to verify the intuition that the relay is useful in increasing DoF.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Antenna Subset Modulation for secure millimeter-wave wireless communication
2013 IEEE Globecom Workshops, GC Wkshps 2013, 1258–1263.
Contributors: N. Valliappan *, R. Heath* & A. Lozano *
TL;DR:
Numerical comparisons of the SER performance and secrecy capacity of the proposed techniques against those of conventional array transmission are presented to highlight the potential of ASM.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
A current perspective on distributed antenna systems for the downlink of cellular systems
IEEE Communications Magazine, 51(4), 161–167.
Contributors: R. Heath* , S. Peters, Y. Wang * & J. Zhang *
TL;DR:
A key observation is that distributed antenna systems are tightly integrated into the cellular architecture, and incorporate physical layer technologies like MIMO communication and multiuser MIMo to provide higher data rates.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
Adaptive quantization on a grassmann-manifold for limited feedback beamforming systems
IEEE Transactions on Signal Processing, 61(18), 4450–4462.
Contributors: S. Schwarz, R. Heath* & M. Rupp
author keywords: Adaptive quantization; channel state information; Grassmann manifold; limited feedback; LTE; multi-user MIMO; OFDMA; quantized feedback
TL;DR:
It is shown that the prediction error in the tangent space associated with the Grassmann manifold behaves approximately Gaussian, provided its norm is sufficiently small.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
A markov decision model for adaptive scheduling of stored scalable videos
IEEE Transactions on Circuits and Systems for Video Technology, 23(6), 1081–1095.
Contributors: C. Chen *, R. Heath* , A. Bovik * & G. De Veciana *
author keywords: Scheduling algorithm; videos transport; wireless communication
TL;DR:
Two scheduling algorithms that seek to optimize the quality of scalably coded videos that have been stored at a video server before transmission are proposed and Simulation results show that the performance of both scheduling algorithms is close to a performance upper bound.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: September 11, 2020
2013 conference paper
A dynamic system model of time-varying subjective quality of video streams over HTTP
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 3602–3606.
Contributors: C. Chen *, L. Choi *, G. De Veciana *, C. Caramanis*, R. Heath Jr. & A. Bovik *
TL;DR:
It is shown that the proposed model can effectively predict the TVSQ of rate-adaptive videos in an online manner, which is necessary to be able to conduct QoE-optimized online rate- Adaptation for HTTP-based video streaming.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 journal article
A distributed algorithm using interference pricing for relay interference channels
Eurasip Journal on Advances in Signal Processing, 2013(1).
Contributors: K. Truong * & R. Heath*
TL;DR:
A two-step algorithm for relay design for the relay interference channel, which models a relay-based cellular system, outperforms the other designs, including the naive approach of applying the single-hop interference pricing strategies on two hops.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
2013 conference paper
Adaptive quantization on the Grassmann-manifold for limited feedback multi-user MIMO systems
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 5021–5025.
Contributors: S. Schwarz, R. Heath* & M. Rupp
TL;DR:
An adaptive quantization algorithm for subspace tracking on the Grassmann-manifold of p-dimensional subspaces in the n-dimensional Euclidean space is proposed, demonstrating large throughput gains compared to memoryless quantization.
(via Semantic Scholar)
Source: ORCID
Added: September 11, 2020
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