M-ary CDMA multiuser underwater acoustic communication and its experimental results

被引：0
|
作者：
HE ChengBing 1
2 China Ship Research and Development Academy
机构：
来源：
Science China(Information Sciences) | 2011年 / 54卷 / 08期
基金：
中国国家自然科学基金;
关键词：
underwater acoustic communications; M-ary code division multiple access (M-ary CDMA); Doppler shift compensation; shallow-water acoustic network; unmanned underwater vehicle;
D O I：
暂无
中图分类号：
TN929.533 [码分多址（CDMA）移动通信];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
A novel M-ary code division multiple access (M-ary CDMA) underwater acoustic communication (UAC) that utilizes quasi-orthogonal sequences has been proposed for the multiple mobile unmanned underwater vehicle (UUV).Its performance has been verified in both four-user synchronous and three-user asynchronous scenarios through a lake experiment over a very shallow-water channel.At a chip rate of 2 kilochips per second,good bandwidth efficiency and robust links have been achieved both at 5 and 15 km distances.The performance of M-ary CDMA in mobile condition (3 m/s) is demonstrated by using the recorded lake experimental data. Experimental results show that the proposed scheme is suitable for multi-user communication platform in long-range shallow-water channel with simple receiver algorithms.
引用
收藏
页码：1747 / 1755
页数：9
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