NDLI: Concatenation of turbo codes with transmit diversity without channel estimation

Content Provider	IEEE Xplore Digital Library
Author	Junghoon Suh Howlader, M.M.K.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Tennessee Univ., Knoxville, TN, USA (Junghoon Suh; Howlader, M.M.K.)
Abstract	Channel estimation has been considered difficult for a time-varying Rayleigh fading channel. The statistics of fading channels are so variant that it is difficult to get an optimal channel model. Overall system complexity reduces without the channel estimation. Concatenating turbo codes to the transmit diversity achieves the coding gain from the concatenated turbo codes and the diversity gain from the transmit diversity. For normalized Doppler frequency, f/sub d/T/sub s/ up to 10/sup -4/ BER degrades by 3 dB for the transmit diversity without channel estimation over the transmit diversity with channel estimation. However, when the transmit diversity with no channel estimation is concatenated with turbo codes, the optimal performance can be obtained even above f/sub d/T/sub s/, 10/sup -4/.
Starting Page	1228
Ending Page	1232
File Size	466402
Page Count	5
File Format	PDF
ISBN	0780374843
DOI	10.1109/VTC.2002.1002810
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Turbo codes Channel estimation Fading Concatenated codes Statistics Diversity methods Frequency diversity Frequency estimation Bit error rate Degradation
Content Type	Text
Resource Type	Article

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