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http://dx.doi.org/10.5394/KINPR.2014.38.4.349

An Optimal Space Time Coding Algorithm with Zero Forcing Method in Underwater Channel  

Kwon, Hae-Chan (Department of radio Communication Engineering, Korea Maritime and Ocean University)
Park, Tae-Doo (Hanwha Corporation Gumi Plant(Development Team3))
Chun, Seung-Yong (Korea Agency for Defense Development)
Lee, Sang-Kook (Korea Agency for Defense Development)
Jung, Ji-Won (Department of radio Communication Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Navigation and Port Research / v.38, no.4, 2014 , pp. 349-356 More about this Journal
Abstract
In the underwater communication, the performance of system is reduced because of the inter-symbol interference occur by the multi-path. In the recent years, to deal with poor channel environment and improve the throughput, the efficient concatenated structure of equalization, channel codes and Space Time Codes has been studied as MIMO system in the underwater communication. Space Time Codes include Space Time Block Codes and Space Time Trellis Codes in underwater communication. Space Time Trellis Codes are optimum for equalization and channel codes among the Space Time Codes to apply in the MIMO environment. Therefore, in this paper, turbo pi codes are used for the outer code to efficiently transmit in the multi-path channel environment. The inner codes consist of Space Time Trellis Codes with transmission diversity and coding gain in the MIMO system. And Zero Forcing method is used to remove inter-symbol interference. Finally, the performance of this model is simulated in the underwater channel.
Keywords
underwater communication; multi-path; Space-Time Trellis Codes; Space-Time Block Codes; Zero Forcing; Turbo Pi;
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