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MIMO-FSK non-coherent detection with spatial multiplexing in fast-fading environment

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Accurate estimationand real-time compensation for phase offset and Doppler shift are essential for coherent multiinput multi-output (MIMO) systems.Here,a spatial multiplexing MIMO scheme with non-coherent frequency-shift keying (FSK) detection is proposed.It is immune to random phase interference and Doppler shift while increasing capacity.It is valuable that the proposed spatial multiplexing MIMO based on energy detection (ED) is equivalent to a linear system,and there is no mutual interference caused by the product of simultaneous signals in square-law processing.The equivalent MIMO channel model is derived as a real matrix,which remains maximal multiplexing capacity and reduces the channel estimation complexity.Simulation results show that the proposed scheme has outstanding performance over Rician flat fading channel,and experimental system obtains four times the capacity through 4 antennas on both transmitter and receiver.

non-coherent MIMOMIMO-FSKspatial multiplexingexperimental system

Zheng Lin、Wang Zhen、Chen Jianmei、Lin Mengying、Deng Xiaofang

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Guangxi Key Laboratory of Wireless Wideband Communications and Signal Processing, Guilin University of Electronic Technology,Guilin 541004, China

Science and Technology on Communication Networks Laboratory, Shijiazhuang 050081, China

This work was supported by the National Natural Science Foundation of ChinaThis work was supported by the National Natural Science Foundation of ChinaGuangxi Key Research and Development Plan

6157114961761014Guike AB18126030

2020

10.19682/j.cnki.1005-8885.2020.0022

中国邮电高校学报(英文版)
北京邮电大学

中国邮电高校学报(英文版)

CSCDEI
影响因子：0.419
ISSN：1005-8885
年,卷(期)：2020.27(5)
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