Software Defined Radio Based Non-orthogonal Multiple Access (NOMA) Systems

被引：7
|
作者：
Reddy, Bathula Siva Kumar [1 ]
Mannem, Kiran [2 ]
Jamal, K. [2 ]
机构：
[1] CMR Engn Coll, Dept Elect & Commun Engn, Hyderabad 501401, Telangana, India
[2] Gokaraju Rangaraju Inst Engn & Technol, Dept ECE, Hyderabad 500090, Telangana, India
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2021年 / 119卷 / 02期
关键词：
GNU radio; NOMA; OFDMA; SDR; USRP;
D O I：
10.1007/s11277-021-08260-2
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper focuses primarily on the study of the implementation of Non-orthogonal multiple access (NOMA) systems on Software defined radio (SDR) platforms, since NOMA has been recognized as a key enabling technology for the fifth generation (5G) wireless networks. A comprehensive review of the original birth, the latest trends, and the future research directions of NOMA is given in this paper. Specifically, several Successive Interference Cancellation (SIC) receivers are provided with mathematical analysis, such as the Ideal SIC receiver, Symbol-level SIC receiver, Codeword-level SIC receiver and Log likelihood ratio (LLR) based receivers. Furthermore, the bit error rate of two users' signals is analyzed by implementing the NOMA system with and without the SIC using GNU Radio software. In addition, the performance of orthogonal multiple access (OMA) and NOMA systems is compared in terms of rate pairs (throughput), spectral efficiency and energy efficiency. Finally, the results reveal that the NOMA system performs better than OMA systems and it will be highlighted that SDR is a flexible platform to implement and test future wireless technologies.
引用
收藏
页码：1251 / 1273
页数：23
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