主动可重构智能表面辅助无小区大规模MIMO

2023 VTS Asia Pacific Wireless Communications Symposium (APWCS) Pub Date : 2023-08-01 DOI:10.1109/APWCS60142.2023.10234040

Prince Anokye, Suho Shin, Woode Theodore, D. K. P. Asiedu, Kyoung-Jae Lee

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引用次数: 0

摘要

本文分析了主动可重构智能表面(RIS)辅助无单元(CF)大规模多输入多输出(mMIMO)在瑞利衰落信道下的频谱效率(SE)。导出了可实现的SE的封闭表达式，并与蒙特卡罗模拟结果进行了比较。主动RIS显著提高了CF mMIMO的性能。此外，在相同的功率预算下，与无源RIS相比，有源RIS显示出更高的和SE性能。

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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Active Reconfigurable Intelligent Surface-Assisted Cell-Free Massive MIMO

This work analyzes the spectral efficiency (SE) of the active Reconfigurable intelligent surfaces (RIS)-assisted cell-free (CF) massive multiple-input multiple-output (mMIMO) under Rayleigh fading channels. Closed-form expression is derived for the achievable SE which is shown to be exact when compared with the Monte Carlo simulations. The active RIS significantly improves the performance of the CF mMIMO. Also, the active RIS shows substantially higher sum SE performance with respect to the passive RIS case under the same power budget.

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2023 VTS Asia Pacific Wireless Communications Symposium (APWCS)

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