DocumentCode :
1643074
Title :
Turbo equalization of convolutional coded and concatenated space time trellis coded systems using radial basis function aided equalizers
Author :
Yee, M.S. ; Yeap, B.L. ; Hanzo, L.
Author_Institution :
Dept. of Electr. & Comput. Sci., Southampton Univ., UK
Volume :
2
fYear :
2001
fDate :
6/23/1905 12:00:00 AM
Firstpage :
882
Abstract :
A reduced-complexity radial basis function (RBF) aided neural-network based turbo equalization (TEQ) scheme is proposed for employment in a serially concatenated convolutional coded and systematic space time trellis coded (CC-SSTTC) arrangement. A two-path Rayleigh fading channel having a normalised Doppler frequency of 3.3615×10 -5 was used. The BER performance of the RBF-CC-SSTTC(4,4) scheme employing a transmission burst consisting of 100 symbols using a space-time-trellis (STT) interleaver of at least 400 symbols and eight turbo equalization iterations was found to be similar to that of the CC-SSTTC system using a trellis-based TEQ, which attains the optimum performance. However, the Jacobian RBF based TEQ provided a complexity reduction factor of 14
Keywords :
Doppler effect; Rayleigh channels; concatenated codes; convolutional codes; decision feedback equalisers; error statistics; interference suppression; interleaved codes; intersymbol interference; multipath channels; radial basis function networks; telecommunication computing; trellis codes; turbo codes; BER performance; DFE; Jacobian RBF based TEQ; RBF aided neural-network; RBF-CC-SSTTC; bit error rate; channel decoding; channel-induced ISI; complexity reduction; concatenated space time trellis coded systems; convolutional coded systems; decision feedback equalizer; normalised Doppler frequency; radial basis function aided equalizers; serially concatenated convolutional code; space-time-trellis interleaver; systematic space time trellis code; transmission burst; trellis-based TEQ; turbo equalization; two-path Rayleigh fading channel; Bit error rate; Channel coding; Concatenated codes; Convolutional codes; Decoding; Employment; Equalizers; Intersymbol interference; Jacobian matrices; Turbo codes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
ISSN :
1090-3038
Print_ISBN :
0-7803-7005-8
Type :
conf
DOI :
10.1109/VTC.2001.956899
Filename :
956899
Link To Document :
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