alexa OSDM Based Underwater Acoustic Communication
ISSN ONLINE(2320-9801) PRINT (2320-9798)

International Journal of Innovative Research in Computer and Communication Engineering
Open Access

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Research Article

OSDM Based Underwater Acoustic Communication

 
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Abstract

Underwater acoustic (UWA) communication is an ongoing challenge because of the heavy time spread by multipath and Doppler spreads. In this paper, UWA communication system using orthogonal signal-division multiplexing (OSDM) has been proposed, a scheme that measures the multipath profile without an adaptation or interpolation process, to achieve stable communication in doubly spread channels. The performance of an OFDM scheme in a UWA communication system is already evaluated in simulations. In the present study, the performance of OSDM and existing communication schemes and orthogonal frequency-division multiplexing (OFDM) with respect to communication quality, and calculation complexity. From that OSDM with a multichannel receiver is attractive in terms of communication quality; it achieved a far better bit error rate (BER) performance compared to the other schemes with various input signal-to-noise ratios, although the complexity is less than that achieved with OFDM. Based on these findings, we suggest that OSDM can provide a highly reliable communication environment for UWA communication with multipath and Doppler spread, such as in shallow water.

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