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Rate-Splitting for Multigroup Multicast Beamforming in Multicarrier Systems

Chen, Hongzhi, Mi, De, Chu, Zheng, Xiao, Pei and Tafazolli, Rahim (2018) Rate-Splitting for Multigroup Multicast Beamforming in Multicarrier Systems In: 19th IEEE International Workshop On Signal Processing Advances in Wireless Communications, 25-28 Jun 2018, Kalamata, Grece.

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Abstract

In this paper, we consider multigroup multicast transmissions with different types of service messages in an overloaded multicarrier system, where the number of transmitter antennas is insufficient to mitigate all inter-group interference. We show that employing a rate-splitting based multiuser beamforming approach enables a simultaneous delivery of the multiple service messages over the same time-frequency resources in a non-orthogonal fashion. Such an approach, taking into account transmission power constraints which are inevitable in practice, outperforms classic beamforming methods as well as current standardized multicast technologies, in terms of both spectrum efficiency and the flexibility of radio resource allocation.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Chen, Hongzhihongzhi.chen@surrey.ac.uk
Mi, Ded.mi@surrey.ac.uk
Chu, Zhengzheng.chu@surrey.ac.uk
Xiao, PeiP.Xiao@surrey.ac.uk
Tafazolli, RahimR.Tafazolli@surrey.ac.uk
Date : 29 June 2018
Copyright Disclaimer : © 2018 Elsevier Ltd. All rights reserved.
Related URLs :
Depositing User : Clive Harris
Date Deposited : 23 May 2018 09:49
Last Modified : 30 Jun 2018 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/846480

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