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Wireless Personal Communications

Multipair Virtual Full Duplex Relaying with Massive MIMO

  • 14-08-2019
Published in:
Authors
Zhaoxi Fang
Pengfei Shao
Jungan Chen
Jiong Shi
Published in
Wireless Personal Communications | Issue 3/2019

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Abstract

This paper considers a massive multiple-input multiple-output (MIMO) aided multipair relay network with virtual full-duplex relaying, where multiple single-antenna sources transmit signals to single-antenna destinations via two massive MIMO relays. The two half-duplex relay nodes work in virtual full-duplex relaying mode that transmit and receive signals in turn. We investigate the sum-rate performance of multipair virtual full-duplex relaying with simple maximum ratio combination and maximum ratio transmission at the relays, and derive closed-form expressions for the asymptotic signal-to-interference-plus-noise ratios when the numbers of relay antennas go infinite. We also compare the sum-rate performance of virtual full-duplex relaying with real full-duplex and conventional half-duplex relaying schemes. Both analytical and numerical results show that virtual full-duplex relaying with massive antenna arrays can achieve the same performance as real full-duplex relaying in symmetric multipair networks, and significantly outperform its half-duplex counterpart.

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Title
Multipair Virtual Full Duplex Relaying with Massive MIMO
Authors
Zhaoxi Fang
Pengfei Shao
Jungan Chen
Jiong Shi
Publication date
14-08-2019
Publisher
Springer US
Published in
Wireless Personal Communications / Issue 3/2019
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-019-06647-w
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