基于用户配对和数据速率功率方案的上行链路noma性能

IF 10.1 2区工程技术 Q1 ENGINEERING, MECHANICAL

Facta Universitatis-Series Mechanical Engineering Pub Date : 2023-07-29 DOI:10.22190/fuacr230324003p

Aleksandra Panajotović, Jelena Anastasov, Dejan Milić, Daniela Milović, Nikola Sekulović

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引用次数: 0

摘要

分析了考虑资源分配的2K用户上行功率域非正交多址(NOMA)系统的性能。由于电力分配和用户配对是紧密交织在一起的，因此它们被认为是一个混合问题。因此，High-High/High-Low用户配对过程优先于基于数据速率的功率分配。导出了在复合Fisher-Snedecor (F)衰落信道上的上行功率域NOMA系统的中断概率和和数据速率的封闭表达式，用于广泛的性能评估。研究了不同衰落/阴影信道条件、不同用户位置及其数量对性能指标的影响。所提出的结果具有很高的通用性，因为F衰落模型在许多感兴趣的通信场景中提供了多径/阴影条件的准确表征。

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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PERFORMANCE OF UPLINK-NOMA WITH USER PAIRING AND DATA RATE-BASED POWER SCHEME

This paper analyzes a performance of uplink power-domain non-orthogonal multiple access (NOMA) system with 2K users in which a resource allocation is taken into consideration. Since the power allocation and user pairing are tightly intertwined, they are considered as a hybrid issue. Accordingly, High-High/High-Low user pairing process precedes date rate-based power allocation. Derived closed-form expressions for the outage probabilities and the sum data rate for uplink power-domain NOMA system over a composite Fisher-Snedecor (F) fading channel are used for an extensive performance evaluation. The impact of different fading/shadowing channel conditions, various users’ positions and their number on the performance metrics is examined. Presented results have high level of generality since the F fading model provides accurate characterization of the multipath/shadowing conditions in numerous communication scenarios of interest.

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来源期刊

Facta Universitatis-Series Mechanical Engineering ENGINEERING, MECHANICAL-

CiteScore

14.40

自引率

2.50%

发文量

审稿时长

6 weeks

期刊介绍： Facta Universitatis, Series: Mechanical Engineering (FU Mech Eng) is an open-access, peer-reviewed international journal published by the University of Niš in the Republic of Serbia. It publishes high-quality, refereed papers three times a year, encompassing original theoretical and/or practice-oriented research as well as extended versions of previously published conference papers. The journal's scope covers the entire spectrum of Mechanical Engineering. Papers undergo rigorous peer review to ensure originality, relevance, and readability, maintaining high publication standards while offering a timely, comprehensive, and balanced review process.