NDLI: Design of LDPC codes for two-state fading channel models

Content Provider	IEEE Xplore Digital Library
Author	Yang, M. Ryan, W.E.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA (Yang, M.; Ryan, W.E.)
Abstract	We consider a two-state fading channel model and the design of LDPC codes for this model. Under certain assumptions, the model leads us to what we call the burst-erasure channel with AWGN (BuEC-G), in which bits are received in Gaussian noise or as part of an erasure burst. To design codes for this channel, we take a "shortcut" and instead design codes for the burst-erasure channel (BuEC) in which a bit is received correctly or it is received as an erasure, with erasures occurring in bursts. We show that optimal BuEC code ensembles are equal to optimal binary erasure channel (BEC) code ensembles and we design optimal codes for these channels. A given code on the BuEC may be characterized by the maximum resolvable erasure-burst length, L/sub max/, and we present a simple algorithm for computing this parameter. Finally, we present error-rate results which demonstrate the superiority of our codes on the BuEC-G over other codes that appear in the literature.
Starting Page	986
Ending Page	990
File Size	511347
Page Count	5
File Format	PDF
ISBN	0780374428
ISSN	13476890
DOI	10.1109/WPMC.2002.1088325
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Design engineering AWGN Gaussian noise Computational modeling NASA Parity check codes Decoding
Content Type	Text
Resource Type	Article

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