DocumentCode :
772599
Title :
Rate 3/4 Convolutional Coding of 16-PSK: Code Design and Performance Study
Author :
Wilson, Stephen G. ; Sleeper, Harry A., II ; Schottler, Paul J. ; Lyons, Mark T.
Author_Institution :
Virginia Univ., Charlottesville, VA, USA
Volume :
32
Issue :
12
fYear :
1984
fDate :
12/1/1984 12:00:00 AM
Firstpage :
1308
Lastpage :
1315
Abstract :
Convolutional coding coupled with 16-PSK modulation is investigated for bandwidth efficient transmission. Rate 3/4, small memory codes are found which are optimized in the free-distance sense on the Gaussian channel. These codes provide up to 4.8 dB of coding gain with 32 states over uncoded 8-PSK, a scheme having the same spectral efficiency as the codes described. The performance is compared with earlier findings of Ungerboeck and some recent results on 
coded 8-PSK. In addition, we present results of a channel transmission study to assess the performance of the four-state code on the band-limited nonlinear channel, and find that performance of the coded scheme degrades comparably with uncoded 8-PSK, i.e., coding gain is roughly preserved.
coded 8-PSK. In addition, we present results of a channel transmission study to assess the performance of the four-state code on the band-limited nonlinear channel, and find that performance of the coded scheme degrades comparably with uncoded 8-PSK, i.e., coding gain is roughly preserved.Keywords :
Convolutional coding; Phase-shift keying; Bandwidth; Convolution; Convolutional codes; Couplings; Gaussian channels; Modulation coding; Performance gain; Phase shift keying; Quadrature phase shift keying; Satellites;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOM.1984.1096002
Filename :
1096002
Link To Document :
