Performance Evaluation of Precoding Schemes for Multi User Massive MIMO System Over Nakagami-m Fading Channel

IF 1.9 4区计算机科学 Q3 TELECOMMUNICATIONS

Wireless Personal Communications Pub Date : 2024-08-12 DOI:10.1007/s11277-024-11325-7

Terefe Bahiru Bashu, Sultan Feisso, Muluneh Mekonnen Tulu

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Abstract

Nowadays, wireless communication system plays great roles in our daily activities and different improvements are requiring because the number of users increase from time to time. At the same time, users need high throughput and link reliability. The forthcoming generation of wireless communication will have to deal with some core requirements for serving large number of users simultaneously, upholding high throughput for each user, assuring less energy consumption, etc. Inter-user interference has a major impact when a wireless communication link has a large number of users. To maintain a particular desired quality of service, sophisticated transmission mechanisms such as interference cancellation need be implemented. As a result, MU-massive MIMO with extremely huge antenna arrays is recommended. The term "MU-massive MIMO" refers to a system with hundreds or thousands of antennas servicing tens of thousands of customers.Inter-user interference was greatly decreased once the channel vectors were closely orthogonal. As a result, high data rates can be supplied to multiple users at the same time. In this work, researcher investigated performance evaluation of a MU-massive MIMO utilizing different precoding schemes (like, MMSE, ZF, MRT) over nakagami-m fading channel with CSI at base station and users’ terminal. In addition, the researcher analyzed the outcome of pilot reuse factors and shaping (m) parameter.

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中上衰减信道上多用户大规模多输入多输出系统的编码方案性能评估

如今，无线通信系统在我们的日常活动中发挥着重要作用，由于用户数量不断增加，因此需要做出不同的改进。同时，用户需要高吞吐量和链路可靠性。下一代无线通信必须满足一些核心要求，如同时为大量用户提供服务、为每个用户提供高吞吐量、确保较低的能耗等。当无线通信链路有大量用户时，用户间干扰会产生重大影响。为了保持特定的理想服务质量，需要实施复杂的传输机制，如干扰消除。因此，建议采用超大天线阵列的多用户-大容量多输入多输出（MU-massive MIMO）技术。MU-massive MIMO "指的是拥有数百或数千个天线、为数万客户提供服务的系统。因此，可以同时向多个用户提供高数据速率。在这项工作中，研究人员利用不同的预编码方案（如 MMSE、ZF、MRT），在基站和用户终端具有 CSI 的 nakagami-m fading 信道上研究了 MU-massive MIMO 的性能评估。此外，研究人员还分析了先导重用系数和整形（m）参数的结果。

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来源期刊

Wireless Personal Communications 工程技术-电信学

CiteScore

5.80

自引率

9.10%

发文量

663

审稿时长

6.8 months

期刊介绍： The Journal on Mobile Communication and Computing ... Publishes tutorial, survey, and original research papers addressing mobile communications and computing; Investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia; Explores propagation, system models, speech and image coding, multiple access techniques, protocols, performance evaluation, radio local area networks, and networking and architectures, etc.; 98% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again. Wireless Personal Communications is an archival, peer reviewed, scientific and technical journal addressing mobile communications and computing. It investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. A partial list of topics included in the journal is: propagation, system models, speech and image coding, multiple access techniques, protocols performance evaluation, radio local area networks, and networking and architectures. In addition to the above mentioned areas, the journal also accepts papers that deal with interdisciplinary aspects of wireless communications along with: big data and analytics, business and economy, society, and the environment. The journal features five principal types of papers: full technical papers, short papers, technical aspects of policy and standardization, letters offering new research thoughts and experimental ideas, and invited papers on important and emerging topics authored by renowned experts.