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Multi-pair bidirectional relaying with full-duplex massive MIMO experiencing channel aging

Multi-pair bidirectional relaying with full-duplex massive MIMO experiencing channel aging
Multi-pair bidirectional relaying with full-duplex massive MIMO experiencing channel aging

In this paper, we study a multi-pair bidirectional (or two-way) full-duplex (FD) massive MIMO relay (FDMMR) system, where the relay employs massive antennas and is operated in the amplify-and-forward (AF) mode. We analyze its spectral efficiency (SE) performance, when both imperfect channel estimation and channel aging effect are considered. We propose four power-scaling schemes based on the zero-forcing reception/zero-forcing transmission (ZFR/ZFT) relaying processing. Assuming that the number of relay antennas approaches infinity, the SE is analyzed in the context of the proposed power scaling schemes. Our analytical results show that the inter-pair interference caused by the other user pairs as well as the self-interference can be completely eliminated by the ZFR/ZFT processing at the relay. The self-loop interference and the inter- user interference can also be cancelled, if a power scaling scheme is carefully selected. Furthermore, our studies show that the channel aging may significantly degrade the SE of the system.

bidirectional (or two-way) relay, channel aging, full-duplex (FD), Massive MIMO, spectral efficiency, zero-forcing reception/zeroforcing transmission (ZFR/ZFT)
1-6
Institute of Electrical and Electronics Engineers Inc.
He, Jiao
e2adb1ac-8e94-4d5e-a8aa-5d013f5e5943
Li, Lixin
31d41958-daec-4a24-a9f5-0f30122b1dd2
Zhang, Huisheng
1ab467cb-160e-411e-8d40-e027b64f2186
Chen, Wei
a10d22f3-d9cc-4769-8e16-d04ee6f33dd3
Yang, Lie Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Han, Zhu
28e29deb-d470-4165-b198-0923aeac3689
He, Jiao
e2adb1ac-8e94-4d5e-a8aa-5d013f5e5943
Li, Lixin
31d41958-daec-4a24-a9f5-0f30122b1dd2
Zhang, Huisheng
1ab467cb-160e-411e-8d40-e027b64f2186
Chen, Wei
a10d22f3-d9cc-4769-8e16-d04ee6f33dd3
Yang, Lie Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Han, Zhu
28e29deb-d470-4165-b198-0923aeac3689

He, Jiao, Li, Lixin, Zhang, Huisheng, Chen, Wei, Yang, Lie Liang and Han, Zhu (2018) Multi-pair bidirectional relaying with full-duplex massive MIMO experiencing channel aging. In 2017 IEEE Global Communications Conference, GLOBECOM 2017: Proceedings. vol. 2018-January, Institute of Electrical and Electronics Engineers Inc. pp. 1-6 . (doi:10.1109/GLOCOM.2017.8254819).

Record type: Conference or Workshop Item (Paper)

Abstract

In this paper, we study a multi-pair bidirectional (or two-way) full-duplex (FD) massive MIMO relay (FDMMR) system, where the relay employs massive antennas and is operated in the amplify-and-forward (AF) mode. We analyze its spectral efficiency (SE) performance, when both imperfect channel estimation and channel aging effect are considered. We propose four power-scaling schemes based on the zero-forcing reception/zero-forcing transmission (ZFR/ZFT) relaying processing. Assuming that the number of relay antennas approaches infinity, the SE is analyzed in the context of the proposed power scaling schemes. Our analytical results show that the inter-pair interference caused by the other user pairs as well as the self-interference can be completely eliminated by the ZFR/ZFT processing at the relay. The self-loop interference and the inter- user interference can also be cancelled, if a power scaling scheme is carefully selected. Furthermore, our studies show that the channel aging may significantly degrade the SE of the system.

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More information

Published date: 10 January 2018
Venue - Dates: 2017 IEEE Global Communications Conference, Singapore, 2017-12-04 - 2017-12-08
Keywords: bidirectional (or two-way) relay, channel aging, full-duplex (FD), Massive MIMO, spectral efficiency, zero-forcing reception/zeroforcing transmission (ZFR/ZFT)

Identifiers

Local EPrints ID: 420854
URI: http://eprints.soton.ac.uk/id/eprint/420854
PURE UUID: 3b0dafe9-6b6b-4eea-b950-28652fa2f90e
ORCID for Lie Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 17 May 2018 16:30
Last modified: 07 Oct 2020 01:42

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Contributors

Author: Jiao He
Author: Lixin Li
Author: Huisheng Zhang
Author: Wei Chen
Author: Lie Liang Yang ORCID iD
Author: Zhu Han

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