Results 61 to 70 of about 604 (109)
Hybrid precoding for physical layer multicasting [PDF]
, 2015 This work investigates the problem of downlink transmit precoding for physical layer multicasting with a limited number of radio-frequency (RF) chains.
Clerckx, B, Dai, M
core +2 more sources
Precoder Design for Physical Layer Multicasting [PDF]
, 2012 This paper studies the instantaneous rate maximization and the weighted sum delay minimization problems over a K-user multicast channel, where multiple antennas are available at the transmitter as well as at all the receivers.
Prasad, Narayan +2 more
core +1 more source
Multigroup Multicast Beamforming and Antenna Selection with Rate-Splitting in Multicell Systems [PDF]
2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2018 This paper studies energy-efficient joint coordinated beamforming and antenna selection in multi-cell multi-user multigroup multicast multiple-input single-output systems. We focus on interference-limited scenarios, e.g., when the number of radio frequency (RF) chains is of the same order as the number of multicasting groups. To tackle the interference,
Tervo, O. (Oskari) +4 more
openaire +2 more sources
Worst-case delay control in multigroup overlay networks [PDF]
, 2017 This paper proposes a novel and simple adaptive control algorithm for the effective delay control and resource utilization of end host multicast (EMcast) when the traffic load becomes heavy in a multigroup network with real-time flows constrained by ...
Jia, Weijia +2 more
core +1 more source
Mrt-Based Joint Unicast and Multigroup Multicast Transmission in Massive Mimo Systems [PDF]
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018 We study joint unicast and multigroup multicast transmission in single-cell massive multiple-input-multiple-output (MIMO) systems, under maximum ratio transmission. For the unicast transmission, the objective is to maximize the weighted sum spectral efficiency (SE) of the unicast user terminals (UTs) and for the multicast transmission the objective is ...
Sadeghi, Meysam +4 more
openaire +2 more sources
Secure Layered Transmission in Multicast Systems with Wireless Information and Power Transfer
, 2014 This paper considers downlink multicast transmit beamforming for secure layered transmission systems with wireless simultaneous information and power transfer.
Alnuweiri, Hussein +2 more
core +1 more source
Multigroup Multicast Beamformer Design for MISO-OFDM With Antenna Selection [PDF]
IEEE Transactions on Signal Processing, 2017 We study the problem of designing transmit beamformers for a multigroup multicasting by considering a multiple-input single-output orthogonal frequency-division multiplexing framework. The design objective involves either minimizing the total transmit power for certain guaranteed quality of service or maximizing the minimum achievable rate among the ...
Venkatraman, Ganesh +3 more
openaire +3 more sources
Cell-Free Beamforming Design for Physical Layer Multigroup Multicasting
IEEE Transactions on Wireless Communicationsv1: 6 pages, accepted at IEEE Global Communications Conference (Globecom), 2024.
Mahmoud Zaher +2 more
openaire +2 more sources
Content-Centric Sparse Multicast Beamforming for Cache-Enabled Cloud RAN
, 2016 This paper presents a content-centric transmission design in a cloud radio access network (cloud RAN) by incorporating multicasting and caching. Users requesting a same content form a multicast group and are served by a same cluster of base stations (BSs)
Chen, Erkai +3 more
core +1 more source
Rank-Two Beamforming and Power Allocation in Multicasting Relay Networks
, 2015 In this paper, we propose a novel single-group multicasting relay beamforming scheme. We assume a source that transmits common messages via multiple amplify-and-forward relays to multiple destinations.
Law, Ka L. +2 more
core +1 more source