DocumentCode
1125675
Title
Trellis codes for the optical direct-detection channel
Author
Pottie, Gregory J.
Author_Institution
Codex Corp., Mansfield, MA, USA
Volume
39
Issue
8
fYear
1991
fDate
8/1/1991 12:00:00 AM
Firstpage
1182
Lastpage
1183
Abstract
It is observed that the reduced complexity minimum distance search method of Zehavi and Wolf (1987) can be extended from codes designed using the squared Euclidean distance measure to any measure which is additive over the code branches. C.N. Georghiades (1989) has derived such a metric for codes for the direct-detection optical channel. The search method is applied to find codes for four- and eight-point overlapping pulse position modulation (OPPM), with large minimum distance and a small number of codewords at that distance
Keywords
error correction codes; optical links; code branches; codewords; metric; optical direct-detection channel; overlapping pulse position modulation; reduced complexity minimum distance search; squared Euclidean distance measure; trellis codes; Convolutional codes; Costs; Error probability; Euclidean distance; Modulation coding; Optical modulation; Optical pulses; Pulse modulation; Search methods; Upper bound;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/26.134004
Filename
134004
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