TY - GEN
T1 - On the optimal power allocation for broadcasting in dense cooperative networks
AU - Mergen, Birsen Sirkeci
AU - Scaglione, Anna
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We study the optimal power allocation problem for cooperative broadcast in dense large-scale networks. In our setup, a single source initiates the transmission and the nodes that receive the message with sufficient signal-to-noise ratio (SNR) retransmit. The goal is to design the transmission order (schedule) and the transmission powers of the relays so that the message reaches to the entire network with the minimum possible power expenditure. In general, finding the best scheduling in cooperative broadcast is known to be NP-complete. In this paper, we show that the optimal scheduling is easily resolved for certain network topologies and channel models. Furthermore, we approximate dense large-scale networks with a continuum of nodes and provide optimal power density for the continuum network under pathloss attenuation.
AB - We study the optimal power allocation problem for cooperative broadcast in dense large-scale networks. In our setup, a single source initiates the transmission and the nodes that receive the message with sufficient signal-to-noise ratio (SNR) retransmit. The goal is to design the transmission order (schedule) and the transmission powers of the relays so that the message reaches to the entire network with the minimum possible power expenditure. In general, finding the best scheduling in cooperative broadcast is known to be NP-complete. In this paper, we show that the optimal scheduling is easily resolved for certain network topologies and channel models. Furthermore, we approximate dense large-scale networks with a continuum of nodes and provide optimal power density for the continuum network under pathloss attenuation.
UR - http://www.scopus.com/inward/record.url?scp=33847720658&partnerID=8YFLogxK
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U2 - 10.1109/ISIT.2006.261668
DO - 10.1109/ISIT.2006.261668
M3 - Conference contribution
AN - SCOPUS:33847720658
SN - 1424405041
SN - 9781424405046
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2889
EP - 2893
BT - Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006
T2 - 2006 IEEE International Symposium on Information Theory, ISIT 2006
Y2 - 9 July 2006 through 14 July 2006
ER -