Generalized-Spatial-Modulation-Based Reduced-RF-Chain Millimeter-Wave Communications

被引：63

作者：

Ishikawa, Naoki ^{[1
]}

Rajashekar, Rakshith ^{[2
]}

Sugiura, Shinya ^{[1
]}

Hanzo, Lajos ^{[2
]}

机构：

[1] Tokyo Univ Agr & Technol, Dept Comp & Informat Sci, Tokyo 1848588, Japan

[2] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2017年 / 66卷 / 01期

基金：

欧洲研究理事会; 日本学术振兴会;

关键词：

Analog beamforming; channel capacity; constrained capacity; generalized spatial modulation (GSM); line-of-sight (LoS); millimeter-wave (mmWave); multiple-input multiple-output (MIMO); multiplexing; CAPACITY;

D O I：

10.1109/TVT.2016.2555378

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A generalized spatial modulation (GSM)-based millimeter-wave communications system is proposed. The GSM transmitter is char-acterized by a lower number of radio frequency (RF) chains than the number of transmit antennas; hence, it is capable of reducing both the transmitter cost and the energy consumption. The antenna array align-ment is optimized so as to maximize the rank of the channel matrix encountered. Furthermore, we employ an array of analog beamformers, which allows us to benefit both from the beamforming gain and from the GSM scheme's high rate. It is demonstrated that the constrained capacity of the GSM transmitter equipped with as few as two RF chains is capable of approaching the performance of the full-RF spatial multiplexing having eight RF chains.

引用

页码：879 / 883

页数：6

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