Exploiting Non-Orthogonal Multiple Access in Cooperative Relay Sharing

被引：144

作者：

Kader, Md. Fazlul ^{[1
]}

Shahab, Muhammad Basit ^{[1
]}

Shin, Soo Young ^{[1
]}

机构：

[1] Kumoh Natl Inst Technol, Dept IT Convergence Engn, WENS Lab, Gumi 39177, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

Ergodic sum capacity; non-orthogonal multiple access; relay sharing; successive interference cancellation; SYSTEMS;

D O I：

10.1109/LCOMM.2017.2653777

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We propose and investigate a dual-hop cooperative relaying scheme using non-orthogonal multiple access (NOMA) (termed NOMA-RS), where two sources communicate with their corresponding destinations in parallel over the same frequency band via a common relay. In this scheme, after receiving symbols transmitted in parallel by both sources with different allocated powers, the relay forwards a super-position coded composite signal using NOMA to the destinations. One of the main benefits of NOMA-RS is that multiple (two) sources can share the same relay, unlike the previous works. Through the simulations and mathematical analysis, we demonstrate the effectiveness of the proposed protocol in terms of ergodic sum capacity by considering perfect and imperfect successive interference cancellation.

引用

页码：1159 / 1162

页数：4

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