Precoding Based Channel Prediction for Underwater Acoustic OFDM

被引：0
|
作者：
CHENG En [1 ,2 ,3 ]
LIN Na [1 ,2 ,3 ]
SUN Hai-xin [1 ,2 ,3 ]
YAN Jia-quan [1 ,2 ,3 ]
QI Jie [1 ,3 ]
机构：
[1] School of Information Science and Engineering,Xiamen University
[2] Key Laboratory of Underwater Acoustic Communication and Marine Information Technology(Xiamen University),Ministry of Education
来源：
China Ocean Engineering | 2017年 / 31卷 / 02期
基金：
中国国家自然科学基金;
关键词：
underwater acoustic communication; precoding; channel prediction; CFO; OFDM;
D O I：
暂无
中图分类号：
TB56 [水声工程];
学科分类号：
082403 ;
摘要：
The life duration of underwater cooperative network has been the hot topic in recent years.And the problem of node energy consuming is the key technology to maintain the energy balance among all nodes.To ensure energy efficiency of some special nodes and obtain a longer lifetime of the underwater cooperative network,this paper focuses on adopting precoding strategy to preprocess the signal at the transmitter and simplify the receiver structure.Meanwhile,it takes into account the presence of Doppler shifts and long feedback transmission delay in an underwater acoustic communication system.Precoding technique is applied based on channel prediction to realize energy saving and improve system performance.Different precoding methods are compared.Simulated results and experimental results show that the proposed scheme has a better performance,and it can provide a simple receiver and realize energy saving for some special nodes in a cooperative communication.
引用
收藏
页码：256 / 260
页数：5
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