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

作　　者：Zheng Lin Wang Zhen Chen Jianmei Lin Mengying Deng Xiaofang 

机构地区：[1]Guangxi Key Lalxiralory of Wireless Wideband Communications and Signal Processing,Guilin University of Electronic Technology,Guilin 541004,China [2]Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2020年第5期47-54,共8页中国邮电高校学报（英文版）

基　　金：the National Natural Science Foundation of China(61571149,61761014);the Guangxi Key Research and Development Plan(Guike AB18126030)。

摘　　要：Accurate estimationand real-time compensation for phase offset and Doppler shift are essential for coherent multi-input 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.

关 键 词：non-coherent MIMO MIMO-FSK spatial multiplexing experimental system 

分 类 号：TN929.5[电子电信—通信与信息系统]