Performance of M-QAM MIMO PNC Based on MRC and ZR Techniques

IF 6.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Open Journal of the Communications Society Pub Date : 2025-01-29 DOI:10.1109/OJCOMS.2025.3535871

Alaa A. Yassin;Ebtihal H. G. Yousif;Rashid A. Saeed;Hashim Elshafie;Abdullah Alenizi;Hesham Alhumyani

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引用次数: 0

Abstract

Wireless networks have been experiencing a very substantial increase in the delivered amount of data with high speed, due to the expansion of wireless applications. Physical-layer Network Coding (PNC) combined with MIMO techniques is introduced to optimize performance metrics and provide increased data throughput and full diversity gain. This paper investigates the performance of MIMO PNC assuming a Two-Way Relay Network (TWRN) over Rayleigh fading. Maximum Ratio Combining (MRC) and Zero-Forcing (ZF) for the receive/transmit diversity techniques are used at the relay node to reduce multi-user interference. The system model is based on denoise-and-forward (DNF) relaying along with the Latin Square (LS) mapping algorithm at the relay node and square M-ary Quadrature Amplitude Modulation (M-QAM) at all nodes. The targetted performance metrics are the error probability, improvement of uplink capacity gain and downlink achievable sum rate. Furthermore, the mathematical model of end-to-end and uplink average error probability, PNC throughput, capacity, and sum rate are derived for the proposed scheme over the Rayleigh fading channel and verified through Monte-Carlo simulations. The obtained result demonstrates the reduction of symbol error rate in addition to enhancement of the normalized throughput, capacity, and sum rate when increasing the number of antenna at the relay node.

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基于MRC和ZR技术的M-QAM MIMO PNC性能研究

由于无线应用的扩展，无线网络在高速传输数据量方面已经经历了非常大幅度的增长。引入物理层网络编码（PNC）与MIMO技术相结合，以优化性能指标，并提供更高的数据吞吐量和全分集增益。本文研究了在瑞利衰落条件下双向中继网络（TWRN）下MIMO PNC的性能。在中继节点上采用最大比组合（MRC）和零强迫（ZF）接收/发射分集技术来减少多用户干扰。该系统模型基于去噪前向（DNF）中继，中继节点采用拉丁平方（LS）映射算法，所有节点采用平方M-ary正交调幅（M-QAM）。目标性能指标是错误概率、上行容量增益改进和下行可达求和率。在瑞利衰落信道下，推导了端到端和上行平均错误概率、PNC吞吐量、容量和和率的数学模型，并通过蒙特卡罗仿真进行了验证。结果表明，增加中继节点天线个数可以降低误码率，提高归一化吞吐量、容量和求和速率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Open Journal of the Communications Society Multiple-

CiteScore

13.70

自引率

3.80%

发文量

审稿时长

10 weeks

期刊介绍： The IEEE Open Journal of the Communications Society (OJ-COMS) is an open access, all-electronic journal that publishes original high-quality manuscripts on advances in the state of the art of telecommunications systems and networks. The papers in IEEE OJ-COMS are included in Scopus. Submissions reporting new theoretical findings (including novel methods, concepts, and studies) and practical contributions (including experiments and development of prototypes) are welcome. Additionally, survey and tutorial articles are considered. The IEEE OJCOMS received its debut impact factor of 7.9 according to the Journal Citation Reports (JCR) 2023. The IEEE Open Journal of the Communications Society covers science, technology, applications and standards for information organization, collection and transfer using electronic, optical and wireless channels and networks. Some specific areas covered include: Systems and network architecture, control and management Protocols, software, and middleware Quality of service, reliability, and security Modulation, detection, coding, and signaling Switching and routing Mobile and portable communications Terminals and other end-user devices Networks for content distribution and distributed computing Communications-based distributed resources control.