Two-way relay assisted non-orthogonal multiple access

The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve...

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Main Authors: Ho, Chun Yeen, Leow, Chee Yen, Ding, Zhiguo
Format: Article
Published: Elsevier B.V. 2019
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Online Access:http://eprints.utm.my/id/eprint/89188/
http://dx.doi.org/10.1016/j.comcom.2019.07.012
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Institution: Universiti Teknologi Malaysia
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spelling my.utm.891882021-01-26T08:49:36Z http://eprints.utm.my/id/eprint/89188/ Two-way relay assisted non-orthogonal multiple access Ho, Chun Yeen Leow, Chee Yen Ding, Zhiguo TK Electrical engineering. Electronics Nuclear engineering The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve the data rates of the users and the base station in an infrastructure based information exchange scenario, without utilizing additional channel resource. Analytical results on uplink and downlink ergodic rates are derived. In order to guarantee the rate of the proposed scheme always surpasses the orthogonal multiple access (OMA) scheme, a power allocation region is derived. Simulation and analytical results show that the proposed scheme achieves better sum rates when compared to the OMA scheme and existing cooperative NOMA scheme. Elsevier B.V. 2019-09 Article PeerReviewed Ho, Chun Yeen and Leow, Chee Yen and Ding, Zhiguo (2019) Two-way relay assisted non-orthogonal multiple access. Computer Communications, 145 . pp. 335-344. ISSN 0140-3664 http://dx.doi.org/10.1016/j.comcom.2019.07.012
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Ho, Chun Yeen
Leow, Chee Yen
Ding, Zhiguo
Two-way relay assisted non-orthogonal multiple access
description The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve the data rates of the users and the base station in an infrastructure based information exchange scenario, without utilizing additional channel resource. Analytical results on uplink and downlink ergodic rates are derived. In order to guarantee the rate of the proposed scheme always surpasses the orthogonal multiple access (OMA) scheme, a power allocation region is derived. Simulation and analytical results show that the proposed scheme achieves better sum rates when compared to the OMA scheme and existing cooperative NOMA scheme.
format Article
author Ho, Chun Yeen
Leow, Chee Yen
Ding, Zhiguo
author_facet Ho, Chun Yeen
Leow, Chee Yen
Ding, Zhiguo
author_sort Ho, Chun Yeen
title Two-way relay assisted non-orthogonal multiple access
title_short Two-way relay assisted non-orthogonal multiple access
title_full Two-way relay assisted non-orthogonal multiple access
title_fullStr Two-way relay assisted non-orthogonal multiple access
title_full_unstemmed Two-way relay assisted non-orthogonal multiple access
title_sort two-way relay assisted non-orthogonal multiple access
publisher Elsevier B.V.
publishDate 2019
url http://eprints.utm.my/id/eprint/89188/
http://dx.doi.org/10.1016/j.comcom.2019.07.012
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