Title :
Three-user Gaussian multiple access channel with partially cooperating encoders
Author :
Simeone, O. ; Somekh, O. ; Kramer, G. ; Poor, H.V. ; Shamai, Shlomo
Author_Institution :
CWCSPR, New Jersey Inst. of Technol., Newark, NJ
Abstract :
A three-user Gaussian multiple access channel (MAC) with encoders partially cooperating over a ring of finite-capacity uni-directional links is studied. The model is a simple extension of the classical two-user MAC with conferencing encoders. Upper and lower bounds on the maximum achievable common rate are derived. The lower bound is attained via a novel multi-layer cooperative strategy. The bounds are tight for a certain range of values of the inter-user link capacity. Numerical results are provided to corroborate the analysis.
Keywords :
access protocols; channel capacity; encoding; radio transmitters; telecommunication channels; Gaussian multiple access channel; conferencing encoders; finite-capacity links; interuser link capacity; multilayer cooperative strategy; partially cooperating encoders; radio connection; radio transmitter; three-user multiple access channel; unidirectional links; wired connection; Complex networks; Context; Decoding; Interference channels; Multiple access interference; Radio transmitters; Random variables; SONET; Source coding; Synchronous digital hierarchy;
Conference_Titel :
Signals, Systems and Computers, 2008 42nd Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2940-0
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2008.5074367
