DocumentCode
772855
Title
A Technique for Improving the Efficiency of M-ary Signaling
Author
Das, J.
Author_Institution
Indian Institute of Tech., Kanpur, India
Volume
32
Issue
2
fYear
1984
fDate
2/1/1984 12:00:00 AM
Firstpage
199
Lastpage
201
Abstract
The coding gain of 
-ary communication systems using orthogonal alphabets have been shown to improve by using concatenated orthogonal codes, each of length 
. In the receiver, a two-stage MF/correlator and ML detection are utilized to provide the final decision through only 
comparisons instead of the 
comparisons normally required. A coding gain of 8 dB for 
is obtained with 
only. Higher coding gain is obtained with higher order concatenation.
-ary communication systems using orthogonal alphabets have been shown to improve by using concatenated orthogonal codes, each of length . In the receiver, a two-stage MF/correlator and ML detection are utilized to provide the final decision through only comparisons instead of the comparisons normally required. A coding gain of 8 dB for is obtained with only. Higher coding gain is obtained with higher order concatenation.Keywords
Concatenated coding; Bandwidth; Concatenated codes; Convolutional codes; Error analysis; Error correction codes; Gain; Gaussian channels; Hardware; Matched filters; Maximum likelihood decoding;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1984.1096026
Filename
1096026
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