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
Link To Document :
