Outage Performance of Relay-Assisted Single- and Dual-Stage NOMA Over Power Line Communications

被引：8

作者：

Ramesh, Roopesh ^{[1
]}

Gurugopinath, Sanjeev ^{[1
]}

Muhaidat, Sami ^{[2
]}

机构：

[1] PES Univ, Dept Elect & Commun Engn, Bengaluru 560085, India

[2] Khalifa Univ, Ctr Cyber Phys Syst, Dept Elect & Comp Engn, Abu Dhabi, U Arab Emirates

来源：

IEEE ACCESS | 2021年 / 9卷

关键词：

NOMA; Relays; Modems; Receivers; Transmitters; Resource management; Probability; Cooperative relaying; outage probability analysis; non-orthogonal multiple access (NOMA); power line communication (PLC); single- and dual-stage NOMA; NONORTHOGONAL MULTIPLE-ACCESS; IMPULSIVE NOISE; 5G SYSTEMS; TRANSMISSION; NETWORKS; UPLINK; MODEL;

D O I：

10.1109/ACCESS.2021.3082169

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we analyze the performance of relay-assisted, single-stage (SS) non-orthogonal multiple access (NOMA) and dual-stage (DS) NOMA power line communication systems. Specifically, we derive closed form expressions for the outage probabilities of the SS NOMA and DS NOMA schemes. Subsequently, we formulate optimization problems and obtain closed-form solutions for the optimal power allocation coefficients of the SS NOMA and DS NOMA schemes, such that the probability of overall outage is minimized. The accuracy of our analysis and the tightness of the approximations employed are validated through Monte Carlo simulations and numerical techniques. Moreover, we show that the DS NOMA scheme outperforms the SS NOMA scheme, in terms of the overall outage probability.

引用

页码：86358 / 86368

页数：11

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