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Multipath Compensation for BPSK Underwater Acoustic Communication  

Lin Chun-Dan (Dept. of Telematics Engr., Pukyong Nat'l Univ.)
Park Ji-Hyun (Dept. of Telematics Engr., Pukyong Nat'l Univ.)
Yoon Jong Rak (Dept. of Telematics Engr., Pukyong Nat'l Univ.)
Publication Information
The Journal of the Acoustical Society of Korea / v.24, no.3E, 2005 , pp. 99-108 More about this Journal
Abstract
To investigate the equalizer performance in underwater acoustic communication m the presence of intersymbol interference (ISI) due to multipath, computer simulations are carried out in discrete multipath shallow water channels for three different horizontal ranges. For the purpose of computation simplicity, least mean square (LMS) algorithm is adopted both in linear equalizer and nonlinear equalizer, decision feedback equalizer (DFE) to cancel out ISI effects. Binary phase shift keying (BPSK) signals have been transmitted with high data rate of 2000bps through the use of equalization technique. The results demonstrate that equalization is an efficient way to achieve high transmission data rate in the shallow water channel.
Keywords
Underwater acoustic communication; Equalizer; Inter-symbol interference; Bit error rate; Multipath;
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