TY - GEN
T1 - Layered randomized cooperation for multicast
AU - Alay, Õzgũ
AU - Ding, Ran
AU - Erkip, Elza
AU - Wang, Yao
AU - Scaglione, Anna
PY - 2008
Y1 - 2008
N2 - Cooperation of wireless users is known to provide substantial improvements in channel reliability and in end-to-end distortion. User cooperation is especially attractive for multicast since the relays are also part of the intended recipients. In this paper, we consider a randomized distributed cooperation schemefor multicasting a source signal. Using end-to-end distortion as a performance metric and assuming a delay constraint, we investigate the relation among the decoding SNR threshold, number of hops, coverage range and the distribution of end-toend quality over users in the coverage range. In order to provide differentiated quality to users with different channel strengths, we further employ layered cooperation and illustrate the benefits.
AB - Cooperation of wireless users is known to provide substantial improvements in channel reliability and in end-to-end distortion. User cooperation is especially attractive for multicast since the relays are also part of the intended recipients. In this paper, we consider a randomized distributed cooperation schemefor multicasting a source signal. Using end-to-end distortion as a performance metric and assuming a delay constraint, we investigate the relation among the decoding SNR threshold, number of hops, coverage range and the distribution of end-toend quality over users in the coverage range. In order to provide differentiated quality to users with different channel strengths, we further employ layered cooperation and illustrate the benefits.
UR - http://www.scopus.com/inward/record.url?scp=70349667032&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349667032&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2008.5074668
DO - 10.1109/ACSSC.2008.5074668
M3 - Conference contribution
AN - SCOPUS:70349667032
SN - 9781424429417
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1484
EP - 1488
BT - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
T2 - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Y2 - 26 October 2008 through 29 October 2008
ER -