DocumentCode :
1215018
Title :
Plurality-Count Diversity Combining for Fading M-ary Transmissions
Author :
Pierce, John N.
Author_Institution :
Air Force Cambridge Research Labs., Bedford, Mass.
Volume :
14
Issue :
4
fYear :
1966
fDate :
8/1/1966 12:00:00 AM
Firstpage :
529
Lastpage :
532
Abstract :
The performance of a plurality-count diversity combiner for fading 
-ary transmissions is analyzed, and calculated error probabilities are presented graphically for alphabet sizes of 2, 8, and 32. The performance is shown to be within 3 dB of that of an optimum square-law combiner for moderate alphabet sizes when there is no restriction on the allowable number of diversity branches. It is shown that a worthwhile saving in transmitted power can be effected by using nonbinary alphabets with plurality-count combining for the transmission of binary data. The availability of extra information from the combiner for use with error-correction is discussed.
-ary transmissions is analyzed, and calculated error probabilities are presented graphically for alphabet sizes of 2, 8, and 32. The performance is shown to be within 3 dB of that of an optimum square-law combiner for moderate alphabet sizes when there is no restriction on the allowable number of diversity branches. It is shown that a worthwhile saving in transmitted power can be effected by using nonbinary alphabets with plurality-count combining for the transmission of binary data. The availability of extra information from the combiner for use with error-correction is discussed.Keywords :
Availability; Circuits; Diversity reception; Error probability; Fading; Logic; Markov processes; Performance loss; Signal to noise ratio; Stochastic processes;
fLanguage :
English
Journal_Title :
Communication Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9332
Type :
jour
DOI :
10.1109/TCOM.1966.1089346
Filename :
1089346
Link To Document :
