TY - GEN
T1 - Dynamic resource allocation for multi source-destination relay networks
AU - Sahin, Onur
AU - Erkip, Elza
PY - 2007
Y1 - 2007
N2 - We consider a wireless network consisting of multiple sources communicating with their corresponding destinations utilizing a single half-duplex relay. The goal is to minimize the outage probability of the total rate in the network by allocating transmission powers and durations as well as rates to the nodes based on instantaneous channel gains, while satisfying a total average network power. The sources are allowed to use the relay opportunistically, that is only when relaying reduces overall power as opposed to direct transmission. We investigate the effect of interference when all sources transmit simultaneously, and the impact of time division among the sources.We show that dynamic allocation and opportunistic transmission based on instantaneous channel states provide significant reduction in outage compared to any constant resource allocation scheme.
AB - We consider a wireless network consisting of multiple sources communicating with their corresponding destinations utilizing a single half-duplex relay. The goal is to minimize the outage probability of the total rate in the network by allocating transmission powers and durations as well as rates to the nodes based on instantaneous channel gains, while satisfying a total average network power. The sources are allowed to use the relay opportunistically, that is only when relaying reduces overall power as opposed to direct transmission. We investigate the effect of interference when all sources transmit simultaneously, and the impact of time division among the sources.We show that dynamic allocation and opportunistic transmission based on instantaneous channel states provide significant reduction in outage compared to any constant resource allocation scheme.
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U2 - 10.1109/CISS.2007.4298266
DO - 10.1109/CISS.2007.4298266
M3 - Conference contribution
AN - SCOPUS:44049092850
SN - 1424410371
SN - 9781424410378
T3 - Forty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings
SP - 19
EP - 24
BT - Forty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings
T2 - 41st Annual Conference on Information Sciences and Systems, CISS 2007
Y2 - 14 March 2007 through 16 March 2007
ER -