DocumentCode :
747784
Title :
Codes preventing quasi-catastrophic error propagation in partial-response systems
Author :
Cideciyan, Roy D. ; Olcer, S.
Author_Institution :
Zurich Res. Lab., IBM Res. Div., Ruschlikon, Switzerland
Volume :
41
Issue :
2
fYear :
1995
fDate :
3/1/1995 12:00:00 AM
Firstpage :
600
Lastpage :
604
Abstract :
The problem of preventing quasi-catastrophic error propagation in maximum-likelihood and reduced-state sequence detection for multilevel partial-response channels with transfer functions (1-DP) and (1+DP) is studied. M-ary channel input sequences that limit the length of minimum distance error events to L symbols are exhaustively characterized by finite-state transition diagrams. An efficient procedure for computing the capacity associated with these transition diagrams is given. Efficient constrained codes that can be readily implemented by finite-state encoders and block decoders with small error propagation are constructed
Keywords :
codes; decoding; maximum likelihood detection; partial response channels; sequences; transfer functions; M-ary channel input sequences; block decoders; constrained codes; finite-state encoders; finite-state transition diagrams; maximum-likelihood detection; minimum distance error events; multilevel partial-response channels; partial-response systems; quasi-catastrophic error propagation; reduced-state sequence detection; small error propagation; transfer functions; transition diagrams capacity; Acoustic noise; Binary trees; Cost function; Costing; Frequency; Information theory; Psychology; Speech; Telegraphy;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/18.370174
Filename :
370174
Link To Document :
بازگشت