User Selection for NOMA-Based MIMO With Physical-Layer Network Coding in Internet of Things Applications

被引：6

作者：

Yilmaz, Saadet Simay ^{[1
]}

Ozbek, Berna ^{[1
]}

Ilguy, Mert ^{[1
]}

Okyere, Bismark ^{[2
]}

Musavian, Leila ^{[2
]}

Gonzalez, Jonathan ^{[3
]}

机构：

[1] Izmir Inst Technol, Dept Elect & Elect Engn, TR-35430 Izmir, Turkey

[2] Univ Essex, Sch Comp Sci & Elect Engn, Colchester CO4 3SQ, Essex, England

[3] GS LDA, P-3750101 Agueda, Portugal

来源：

IEEE INTERNET OF THINGS JOURNAL | 2022年 / 9卷 / 16期

关键词：

NOMA; MIMO communication; Internet of Things; Interference; Uplink; Relays; Bit error rate; Internet of Things (IoT); multiple-input-multiple-output (MIMO); nonorthogonal multiple access (NOMA); physical-layer network coding (PNC); user-set selection; NONORTHOGONAL MULTIPLE-ACCESS;

D O I：

10.1109/JIOT.2021.3079157

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Nonorthogonal multiple access (NOMA)-based multiple-input-multiple-output (MIMO), which has the potential to provide both massive connectivity and high spectrum efficiency, is considered as one of the efficient techniques for sixth-generation (6G) wireless systems. In massive Internet of Things (IoT) networks, the user-set selection is crucial for enhancing the overall performance of NOMA-based systems when compared with orthogonal multiple access (OMA) techniques. In this article, we propose a user-set selection algorithm for IoT uplink transmission to improve the sum data rate of the NOMA-based MIMO systems. In order to exchange data between the selected IoT pairs, we propose to employ wireless physical-layer network coding (PNC) to further improve the spectral efficiency and reduce the delay to fulfill the requirements of future IoT applications. Performance evaluations are provided based on both the sum data rate and bit error rate for the proposed NOMA-based MIMO with PNC in the considered massive IoT scenarios.

引用

页码：14998 / 15006

页数：9

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