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

doi:10.19682/j.cnki.1005-8885.2020.0022

中国邮电高校学报(英文) ›› 2020, Vol. 27 ›› Issue (5): 47-54.doi: 10.19682/j.cnki.1005-8885.2020.0022

所属专题：人工智能专题

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

郑霖; 汪震; 陈建梅; 林梦莹; 邓小芳

桂林电子科技大学

收稿日期:2019-11-22 修回日期:2020-04-13 出版日期:2020-10-22 发布日期:2020-10-23
通讯作者: 郑霖 E-mail:gwzheng@gmail.com
基金资助:
国家自然科学基金;国家自然科学基金;广西重点研发计划

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

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

Guilin University of Electronic Technology Science and Technology on Communication Networks Laboratory

Received:2019-11-22 Revised:2020-04-13 Online:2020-10-22 Published:2020-10-23
Supported by:
the National Natural Science Foundation of China, the Guangxi Key Research and Development Plan

摘要/Abstract

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

Abstract: 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.

Key words: non-coherent MIMO, MIMO-FSK, spatial multiplexing, experimental system

中图分类号:

TN929.5

Zheng Lin, Wang Zhen, Chen Jianmei, Lin Mengying, Deng Xiaofang. MIMO-FSK non-coherent detection with spatial multiplexing in fast-fading environment[J]. The Journal of China Universities of Posts and Telecommunications, 2020, 27(5): 47-54.

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

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

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