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

Taehyuk Kang | Zendy; H. C. Song | Zendy; William S. Hodgkiss | Zendy; Jea Soo Kim | Zendy

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

Author(s) -

Taehyuk Kang,

H. C. Song,

William S. Hodgkiss,

Jea Soo Kim

Publication year - 2010

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3514157

Subject(s) - underwater acoustic communication , orthogonal frequency division multiplexing , underwater , bandwidth (computing) , acoustics , computer science , channel (broadcasting) , transmission (telecommunications) , underwater acoustics , decoding methods , telecommunications , geology , physics , oceanography

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.

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