Asynchronous multiuser underwater acoustic communications (L)

被引:15
作者
Cho, S. E. [1 ]
Song, H. C. [2 ]
Hodgkiss, W. S. [2 ]
机构
[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
关键词
Underwater acoustics - Code division multiple access;
D O I
10.1121/1.4726029
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
An asynchronous multiuser system is proposed to support multiple-access underwater communications without the use of code-division multiple-access or a feedback channel. The rich multipath channels experienced by spatially separated users will be sufficient to ensure separation of collided packets at the base station. The iterative receiver will employ a combination of adaptive time-reversal processing, matching pursuit, and successive interference cancellation in a block-wise fashion to achieve multiuser separability. Data collected during the KAM11 experiment are used to illustrate the system's capability in a dynamic, time-varying environment. (C) 2012 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4726029]
引用
收藏
页码:5 / 8
页数:4
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