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Performance Analysis of an Underwater Acoustic Communication System Combining AMC and STBC Techniques  

Jung, Jin-Woo (Soongsil University)
Shim, Tae-Bo (Soongsil University)
Publication Information
The Journal of the Acoustical Society of Korea / v.26, no.3E, 2007 , pp. 97-103 More about this Journal
Abstract
We propose a combined STBC (Space Time Block Coding) and AMC (Adaptive Modulation and Coding) in the underwater multipath communication channel. Performance of UAC (underwater acoustic communication) in shallow water is degraded by complicated multipath and reverberation. For this reason, and considering the variability of the ocean channel, we combined STBC and AMC techniques, which are the spatial diversity in a multi-sensor communication system. BER (Bit error rate) of combined STBC and AMC is improved by 5dB when we compare with the BER of a single sensor based system. The proposed system shows a 3dB improvement when we compare it with the BER of the single sensor based system applying the AMC technique only.
Keywords
UAC; STBC; AMC; BER; multipath; reverberation; diversity;
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