An improved decision feedback channel estimation algorithm for multiple-input multiple-output orthogonal frequency division multiplexing underwater acoustic communication

被引：0

作者：

Qiao, Gang ^{[1
]}

Wang, Wei ^{[1
]}

Liu, Songzuo ^{[1
]}

Khan, Rehan ^{[1
]}

Wang, Yue ^{[1
]}

机构：

[1] Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin,150001, China

来源：

Shengxue Xuebao/Acta Acustica | 2016年 / 41卷 / 01期

关键词：

Acoustic environment - Decision feedback - Error propagation - Low signal-to-noise ratio - Matching pursuit - Minimum mean square errors - Multiple-input multiple-output orthogonal frequency-division multiplexing - Underwater acoustic communications;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To overcome the disadvantage of error propagation, an improved decision feedback channel estimation algorithm based on compressed sensing technology is proposed for multiple-input multiple-output orthogonal frequency division multiplexing communication in low signal-to-noise ratio underwater acoustic environment. The corrected and the original information are used to contrive the decision feedback channel estimation. And taking advantage of neritic channel's sparse characters, the channels can be constructed by matching pursuit ameliorated minimum mean square error decision feedback channel estimation algorithm without error propagation. Experiment results performed with numerical simulation and tank-trial data are provided, demonstrating that the proposed algorithm can effectively reduce the occupancy of pilots, abate the burst noise effect, offer confined error propagation and significantly increase the quality of the system. © 2016 Acta Acustica.

引用

页码：94 / 104

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