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http://dx.doi.org/10.6109/jkiice.2016.20.9.1688

Faster Than Nyquist Transmission Method for Throughput Improvement in Underwater Communication  

Baek, Chang-uk (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Jung, Ji-won (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.20, no.9, 2016 , pp. 1688-1695 More about this Journal
Abstract
Underwater communication has multipath error because of reflection by sea-level and sea-bottom. The multipath of underwater channel causes signal distortion and error floor. The excessive multipath encountered in underwater communication channel creates inter symbol interference, which is a limiting factor to achieve a high data rate and bit error rate performance. Therefore, to increase throughput efficiency and improve performance, this paper consider FTN (Faster-than-Nyquist) signalling based on turbo equalization. FTN signalling is a technique of transmitting information at a rate higher than the allowed Nyquist limit. This paper presented efficient decoder structure of FTN transmission in the environment of multipath underwater channel and we compare the performance between FTN method and conventional punctured method in lake experimentation. As a results of lake experiment, we confirmed FTN method based on turbo equalization is applicable and efficiency in underwater communication.
Keywords
Underwater communication; Multipath; Inter symbol interference; Faster Than Nyquist; Punctured codes;
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Times Cited By KSCI : 2  (Citation Analysis)
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