Two-Stage Space-Time Receiver Structure for Multi-User Hybrid mmW Massive MIMO Systems

被引：0

作者：

Magueta, Roberto ^{[1
]}

Castanheira, Daniel ^{[1
]}

Silva, Adao ^{[1
]}

Dinis, Rui ^{[2
]}

Gameiro, Atilio ^{[1
]}

机构：

[1] Univ Aveiro, DETI, Inst Telecomunicacoes, Aveiro, Portugal

[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, Inst Telecomunicacoes, P-1200 Lisbon, Portugal

来源：

2016 IEEE CONFERENCE ON STANDARDS FOR COMMUNICATIONS AND NETWORKING (CSCN) | 2016年

关键词：

massive MIMO; millimeter wave communications; non-linear equalization; hybrid analog/digital architectures;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper considers a hybrid two-stage space-time receiver structure for uplink millimeter wave (mmW) based systems, where the user terminals (UTs) and the base station (BS) are equipped with a large antenna array and the number of radio frequency (RF) chains is lower than the number of antennas. In the first stage the analog transmit and receive beamformers/precoders are computed for each UT BS pair considering multi-user interference free links, to maximize the desired signal power for each UT. In the second one, an iterative block space-time equalizer is designed to explicitly remove the multiuser interference. The designed space-time equalizer is optimized by using as a metric the mean square error (MSE) between the transmitted data vector and its estimate after the digital equalizer. Our performance results have shown that the proposed iterative space-time equalizer outperforms the linear MMSE based receivers for hybrid mmW massive MIMO architectures.

引用

页数：6

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