文献类型：期刊文献

英文题名：Performance analysis and optimization for cellular two-way relay networks with cooperative NOMA transmission

作者：Fang, Zhaoxi[1];Lu, Yingzhi[1];Fan, En[1];Hu, Keli[1];Zhou, Haiping[1]

机构：[1]Shaoxing Univ, Dept Comp Sci & Engn, Shaoxing 312000, Peoples R China

年份：2023

卷号：9

期号：4

起止页码：614

外文期刊名：ICT EXPRESS

收录：SCI-EXPANDED(收录号：WOS:001106717800001)、、Scopus(收录号：2-s2.0-85138099074)、WOS

基金：This work was supported by the Zhejiang Provincial Basic Public Welfare Research Project under Grant LGF22F010006 and LGG22F010004, the Zhejiang Provincial Philosophy and Social Science Planning Project of China under Grant 22NDJC148YB, the Zhejiang Provincial Natural Science Foundation, China (Grant No. LY20F020011) , Social Sciences and Humanities Youth Foundation of Ministry of Education (Grant No. 21YJCZH039) , the Key scientific research project of Shaoxing University, China (Grant No. 2020LG1004) and the Humanities and Social Sciences Foundation of Ministry of Education of China under Grant no. 22A10349003.

语种：英文

外文关键词：NOMA; Two-way relaying; Decode-and-forward; Sum-rate performance

外文摘要：This paper proposes a cooperative non-orthogonal multiple access (NOMA) based two-way transmission scheme for a two-user cellular system, in which a base station (BS) exchanges information with a directlink user and an indirect link user. With superimposition coding, physical-layer network coding (PLNC) and successive interference cancellation, the BS and the two users are able to exchange messages within three time slots. We derive the sum-rate upper bound of the proposed scheme and investigate the optimal time and power allocations to maximize the sum-rate bound. Numerical results demonstrate that the derived bound is tight and the proposed scheme can improve the sum-rates significantly as compared with existing NOMA-based schemes.(c) 2022 The Authors. Published by Elsevier B.V. on behalf of The Korean Institute of Communications and Information Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).