Long-range multi-carrier acoustic communications in shallow water based on iterative sparse channel estimation

被引：28
|
作者：
Kang, Taehyuk [1 ]
Song, H. C. [1 ]
Hodgkiss, W. S. [1 ]
机构：
[1] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2010年 / 128卷 / 06期
关键词：
D O I：
10.1121/1.3514157
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Long-range orthogonal frequency division multiplexing (OFDM) acoustic communications is demonstrated using data from the Kauai Acomms MURI 2008 (KAM08) experiment carried out in about 106 m deep shallow water west of Kauai, HI, in June 2008. The source bandwidth was 8 kHz (12-20 kHz), and the data were received by a 16-element vertical array at a distance of 8 km. Iterative sparse channel estimation is applied in conjunction with low-density parity-check decoding. In addition, the impact of diversity combining in a highly inhomogeneous underwater environment is investigated. Error-free transmission using 16-quadtrative amplitude modulation is achieved at a data rate of 10 kb/s. (c) 2010 Acoustical Society of America
引用
收藏
页码：EL372 / EL377
页数：6
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