DocumentCode :
1552963
Title :
Sequence estimation for class-IV partial-response channels with jitter
Author :
Feig, Ephraim
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Volume :
38
Issue :
8
fYear :
1990
fDate :
8/1/1990 12:00:00 AM
Firstpage :
1181
Lastpage :
1189
Abstract :
An analysis is presented of the output of class-IV partial-response channels corrupted simultaneously by jitter and additive white noise. The authors analyze the behavior of the least-squares (LS) decoder for this channel. They introduce the projection-minimization (P-M) algorithm and demonstrate that, under favorable conditions, its performance, even when not acceptable on its own, could possibly be beneficial when used in conjunction with the LS decoder in enhancing the reliability of the channel. Implementation of the P-M decoder is rather expensive, and it is not at all clear that combining the P-M algorithm with LS decoding and traditional error control schemes is the best way of dealing with channels corrupted by jitter. It may be possible to avoid the P-M algorithm and instead utilize a more aggressive traditional error correction scheme. Alternatively, it may be possible to choose modulation schemes which utilize pulses whose derivatives at the sampled values are small, and perhaps obtain better results than with partial-response class-IV signaling
Keywords :
decoding; error correction; modulation; telecommunication channels; white noise; additive white noise; class-IV partial-response channels; error control schemes; error correction scheme; jitter; least squares decoder; modulation schemes; projection-minimisation algorithm, sequence estimation; Additive noise; Error correction; Gaussian noise; Jitter; Least squares approximation; Maximum likelihood decoding; Maximum likelihood estimation; White noise; Writing; Yield estimation;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/26.58751
Filename :
58751
Link To Document :
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