DocumentCode :
1647022
Title :
Iterative equalization for underwater acoustic channels using bit interleaved coded modulation and decision feedback equalization
Author :
Shah, C.P. ; Tsimenidis, C.C. ; Sharif, B.S. ; Neasham, J.A.
Author_Institution :
Sch. of Electr., Newcastle Univ., Newcastle upon Tyne, UK
fYear :
2009
Firstpage :
1
Lastpage :
5
Abstract :
An iterative receiver scheme combining decision feedback equalizer (DFE) and bit interleaved coded modulation (BCIM-ID), suitable for transmission over frequency selective channels with large delay spread is proposed, where adaptive equalization and channel decoding are jointly optimized. Extensive simulation results presented for a realistic underwater time varying multipath channel exhibiting multipath delay spread of the order of 10 ms for data rates of 8 kbps, demonstrate that the proposed receiver not only reduces intersymbol interference and error propagation in the DFE, but also provides better bit error rate (BER) performance than the system employing turbo codes.
Keywords :
adaptive equalisers; channel coding; decision feedback equalisers; decoding; error statistics; frequency selective surfaces; interleaved codes; intersymbol interference; iterative methods; modulation coding; multipath channels; time-varying channels; underwater acoustic communication; adaptive equalization; bit error rate performance; bit interleaved coded modulation; bit rate 8 kbit/s; channel decoding; decision feedback equalization; error propagation; frequency selective channel; intersymbol interference; iterative equalization; iterative receiver scheme; multipath delay spread; realistic underwater time varying multipath channel; underwater acoustic channel; Adaptive equalizers; Bit error rate; Decision feedback equalizers; Delay; Frequency; Interleaved codes; Iterative decoding; Modulation coding; Time varying systems; Underwater acoustics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS 2009 - EUROPE
Conference_Location :
Bremen
Print_ISBN :
978-1-4244-2522-8
Electronic_ISBN :
978-1-4244-2523-5
Type :
conf
DOI :
10.1109/OCEANSE.2009.5278176
Filename :
5278176
Link To Document :
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