Title :
Mixed-rate multiuser codes for the T-user binary adder channel
Author :
Cooper, A. Brinton ; Hughes, Brian L.
Author_Institution :
Inf. Sci. & Technol. Directorate, Army Res. Lab., Aberdeen Proving Ground, MD, USA
Abstract :
Coding schemes for the T-user binary adder channel are investigated. Recursive constructions are given for two families of mixed-rate, multiuser codes. These basic codes can be combined by time-sharing to yield codes approaching most rates in the T-user capacity region. The best codes constructed achieve a rate sum, R1 +...+RT, which is higher than all previously reported codes for T⩾4 and is within 0.519 bits/channel use of the information-theoretic limit
Keywords :
channel capacity; channel coding; codes; multi-access systems; T-user binary adder channel; T-user capacity region; information theoretic limit; mixed rate multiuser codes; multiple access channel; rate sum; time sharing; Additive noise; Decoding; Feedback; Hydrogen; Information rates; Information science; Laboratories; Notice of Violation; Time sharing computer systems; Welding;
Conference_Titel :
Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on
Conference_Location :
Whistler, BC
Print_ISBN :
0-7803-2453-6
DOI :
10.1109/ISIT.1995.550480
