DocumentCode :
2619326
Title :
MAP detection of binary sources over discrete Markov channels
Author :
Alajaji, Fady ; Pharndo, N. ; Farvardin, Nariman ; Fuja, Tom
Author_Institution :
Dept. of Electr. Eng. & Syst. Res. Center, Maryland Univ., College Park, MD, USA
fYear :
1994
fDate :
27 Jun-1 Jul 1994
Firstpage :
300
Abstract :
A source with memory as well as a memoryless source with a non-uniform distribution are sources with redundancy. If a discrete alphabet source is a uniformly distributed i.i.d. random process, it contains a maximal amount of information and exhibits no redundancy. Its entropy rate is then maximized and is equal to log2 q bits/sample, where q is the source alphabet size. The amount of redundancy a q-ary alphabet source possesses is equal to the difference between log2 q and its entropy rate. The authors consider a binary source with an inherent redundancy that they make no attempt to eliminate. The source is directly transmitted over a discrete noisy channel. The objective is to design an optimum receiver which fully utilizes the source redundancy in order to combat the impairments introduced by the channel noise
Keywords :
Markov processes; binary sequences; discrete systems; entropy; interference suppression; maximum likelihood estimation; random processes; redundancy; signal detection; telecommunication channels; MAP detection; binary sources; channel noise; discrete Markov channels; discrete alphabet source; discrete noisy channel; entropy rate; independent identically distributed process; memoryless source; nonuniform distribution; optimum receiver; q-ary alphabet source; redundancy; source redundancy; uniformly distributed iid random process; Additive noise; Delay; Detectors; Diseases; Educational institutions; Entropy; Error correction codes; Markov processes; Random processes; Redundancy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
Type :
conf
DOI :
10.1109/ISIT.1994.394718
Filename :
394718
Link To Document :
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