NDLI: Improved union bounds on turbo codes performance in the Rician fading channel

Content Provider	IEEE Xplore Digital Library
Author	Babich, F. Montorsi, G. Vatta, F.
Copyright Year	1999
Description	Author affiliation: Dipt. di Elettrotecnica/Elettronica ed Inf., Trieste Univ., Italy (Babich, F.)
Abstract	In this work, an improved union bound on the performance of turbo codes is evaluated using a new union bound presented by Viterbi et al., (1998). The characterization of turbo code performance is provided considering both the fully-interleaved channel and correlated Rice slow-fading channel. A uniform interleaver is assumed: this strategy allows one to derive the average performance of the turbo coding scheme by analysis. Of interest is the improvement of the bound for values of E/sub b//N/sub 0/ near and below R/sub 0/ (i.e., the "computational cutoff rate"), region where the conventional union bound becomes useless. This improvement allows a better estimate of the code performance in conjunction with the AWGN channel and with the fast-fading fully-interleaved channel. Moreover, it allows one to determine a tighter bound to the actual code performance as far as the slow fading Rician channel is concerned.
Starting Page	2178
Ending Page	2182
File Size	443641
Page Count	5
File Format	PDF
ISBN	0780354354
ISSN	10903038
DOI	10.1109/VETECF.1999.797324
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-09-19
Publisher Place	The Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Turbo codes Rician channels Fading Maximum likelihood decoding Iterative decoding Viterbi algorithm AWGN channels Performance analysis Transfer functions Convolutional codes
Content Type	Text
Resource Type	Article

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