Title :
Performance of turbo decoding for time-varying multipath channels
Author :
GöSE, Ersin ; Buyukatak, K. ; Osman, Onur ; UCAN, Osman Nun ; Pastaci, Halit
Author_Institution :
Turkish Air Force Acad., Istanbul, Turkey
Abstract :
In this paper, the performance of turbo coded signals are investigated over a new channel model, denoted as wide-sense stationary uncorrelated scattering (WSSUS) multipath channel. Digital transmission through WSSUS channel model with additive white Gaussian noise (AWGN) introduced at the receiver. For observing the performance of the turbo decoder, COST207 (COoperation in the field of Science & Technology, Project #207) models (statistical channel models) based on WSSUS channel model are considered. Before decoding, the inverse filtering applied to equalize the corrupted data. LMS, RLS and Kalman algorithms are used for estimating inverse filter coefficients. Turbo decoder and its efficient implementation are discussed, and simulation results are presented.
Keywords :
AWGN channels; Kalman filters; decoding; delays; error statistics; filtering theory; least mean squares methods; multipath channels; time-varying channels; turbo codes; AWGN; AWGN-receiver; Kalman algorithms; LMS algorithms; RLS algorithms; WSSUS multipath channel model; additive white Gaussian noise; decoding; digital transmission; error statistics; inverse filter coefficients; inverse filtering; statistical channel models; time varying multipath channels; turbo coded signals; turbo decoder; turbo decoding; wide-sense stationary uncorrelated scattering multipath channel model; AWGN; Acoustic scattering; Additive white noise; Decoding; Fading; Filtering; Land mobile radio; Multipath channels; Propagation delay; Satellite broadcasting;
Conference_Titel :
Recent Advances in Space Technologies, 2003. RAST '03. International Conference on. Proceedings of
Conference_Location :
Istanbul, Turkey
Print_ISBN :
0-7803-8142-4
DOI :
10.1109/RAST.2003.1303996
