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Title: Network-coded NOMA with antenna selection for the support of two heterogeneous groups of users
Authors: Khan, Amjad Saeed
Chatzigeorgiou, Ioannis
Lambotharan, Sangarapillai
Zheng, Gan
Keywords: Antenna selection
Non-orthogonal multiple access
Network coding
Random block matrices
Outage probability
Decoding probability
Issue Date: 2019
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Citation: KHAN, A.S. ... et al., 2019. Network-coded NOMA with antenna selection for the support of two heterogeneous groups of users. IEEE Transactions on Wireless Communications, 18(2), pp. 1332 - 1345.
Abstract: The combination of Non-Orthogonal Multiple Access (NOMA) and Transmit Antenna Selection (TAS) techniques has recently attracted significant attention due to the low cost, low complexity and high diversity gains. Meanwhile, Random Linear Coding (RLC) is considered to be a promising technique for achieving high reliability and low latency in multicast communications. In this paper, we consider a downlink system with a multi-antenna base station and two multicast groups of single-antenna users, where one group can afford to be served opportunistically, while the other group consists of comparatively low power devices with limited processing capabilities that have strict Quality of Service (QoS) requirements. In order to boost reliability and satisfy the QoS requirements of the multicast groups, we propose a cross-layer framework including NOMAbased TAS at the physical layer and RLC at the application layer. In particular, two low complexity TAS protocols for NOMA are studied in order to exploit the diversity gain and meet the QoS requirements. In addition, RLC analysis aims to facilitate heterogeneous users, such that, sliding window based sparse RLC is employed for computational restricted users, and conventional RLC is considered for others. Theoretical expressions that characterize the performance of the proposed framework are derived and verified through simulation results.
Description: This is an Open Access Article. It is published by IEEE under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: This work was supported in part by the Engineering and Physical Sciences Research Council under Grant EP/R006385/1 and Grant EP/N007840/1, and in part by the Leverhulme Trust Research Project under Grant RPG-2017-129.
Version: Published
DOI: 10.1109/twc.2019.2891769
URI: https://dspace.lboro.ac.uk/2134/36863
Publisher Link: https://doi.org/10.1109/twc.2019.2891769
ISSN: 1536-1276
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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