DocumentCode :
916102
Title :
On neighbor distances and symmetry in group codes (Corresp.)
Author :
Slepian, D.
Volume :
17
Issue :
5
fYear :
1971
fDate :
9/1/1971 12:00:00 AM
Firstpage :
630
Lastpage :
632
Abstract :
This correspondence provides counterexamples to two frequently proposed conjectures concerning group codes for the Gaussian channel. It is shown 1) that a code for which the list of distances from codeword i to all other words is independent of i is not necessarily a group code, and 2) a group code of M words need not possess a transitive symmetry group of order M .
Keywords :
Group codes; AWGN channels; Additive white noise; Gaussian channels; Gaussian noise; Logic; Maximum likelihood estimation; Reactive power; Statistics; Telemetry;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.1971.1054674
Filename :
1054674
Link To Document :
بازگشت