Forwarding Strategy Selection in Dual-Hop NOMA Relaying Systems

被引：35

作者：

Xiao, Yue ^{[1
]}

Hao, Li ^{[1
]}

Ma, Zheng ^{[1
]}

Ding, Zhiguo ^{[2
]}

Zhang, Zhengquan ^{[1
]}

Fan, Pingzhi ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Key Lab Informat Coding & Transmiss, Chengdu 610031, Sichuan, Peoples R China

[2] Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England

来源：

IEEE COMMUNICATIONS LETTERS | 2018年 / 22卷 / 08期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

Non-orthogonal multiple-access (NOMA); amplify-and-forward relaying; decode-and-forward relaying; forwarding strategy selection; NONORTHOGONAL MULTIPLE-ACCESS;

D O I：

10.1109/LCOMM.2018.2803809

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Non-orthogonal multiple-access (NOMA) with perfect successive interference cancellation is an emerging research topic in the future wireless communication systems. In this work, NOMA is applied to dual-hop relaying systems, where the signals are transmitted with the aid of either decode-and-forward (DF) or amplify-and-forward (AF) relay. Exact expressions for outage probability and ergodic capacity are derived over independent Rayleigh fading channels, and a tight upper bound for the outage probability of AF scheme is provided. Based on the analysis, we study forwarding strategy selection for both fixed and optimized power allocation. The presented simulations verify the accuracy of the analysis, and the efficiency of the proposed forwarding strategy.

引用

页码：1644 / 1647

页数：4

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