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Convolutional coding combined with continuous phase modulationBackground theory and specific coding designs for combined coding/modulation schemes utilizing convolutional codes and continuous-phase modulation (CPM) are presented. In this paper the case of r = 1/2 coding onto a 4-ary CPM is emphasized, with short-constraint length codes presented for continuous-phase FSK, double-raised-cosine, and triple-raised-cosine modulation. Coding buys several decibels of coding gain over the Gaussian channel, with an attendant increase of bandwidth. Performance comparisons in the power-bandwidth tradeoff with other approaches are made.
Document ID
19850039876
Document Type
Reprint (Version printed in journal)
Authors
Pizzi, S. V. (TRW, Inc. TRW Systems Group, Redondo Beach, CA, United States)
Wilson, S. G. (Virginia, University Charlottesville, VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: IEEE Transactions on Communications
Volume: COM-33
ISSN: 0090-6778
Subject Category
COMMUNICATIONS AND RADAR
Distribution Limits
Public
Copyright
Other