PLURALITY-COUNT DIVERSITY COMBINING FOR FADING M-ARY TRANSMISSIONS.
Abstract
The performance of a plurality-count diversity combiner for fading M-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 transmitter power can be effected by using non-binary 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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0627001
Entities
People
- John N. Pierce
Organizations
- Air Force Cambridge Research Laboratories