随机LOS信道下DL大规模MIMO中用户扩散对输入功率扩散的影响

2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2020-07-05 DOI:10.23919/USNC/URSI49741.2020.9321672

A. A. Glazunov, Y. Miao

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引用次数: 1

摘要

研究了随机视差信道下窄带大规模MIMO天线系统由于小区扇区变窄引起的放大器输出功率的扩散和速率容量损失。忽略了阵列元素之间的耦合效应。当用户分布在狭窄的扇区和使用zf预编码时，可以观察到放大器输出功率的大功率分布。对于MF和zf预编码，特别是后者，容量都大大减少。

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Impact of User Spread on the Input Power Spread in DL Massive MIMO in Random LOS Channels

Presented are the spread of the amplifier output power and the sum rate capacity loss of a narrowband massive MIMO antenna system in a Random-LOS channel due to cell-sector narrowing. Coupling effects between the array elements have been neglected. A large power spread of the output power of the amplifiers is observed when users are spread over narrow sectors and ZF-precoding is used. The capacity is considerably reduced for both MF- and ZF-precoding, especially for the latter.

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来源期刊

2020 IEEE USNC-CNC-URSI North American Radio Science Meeting (Joint with AP-S Symposium)

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