TY - GEN
T1 - Iterative power allocation algorithms for amplify/estimate/compress-and- forward multi-band relay channels
AU - Lee, Kyounghwan
AU - Yener, Aylin
PY - 2006/1/1
Y1 - 2006/1/1
N2 - We investigate the optimum transmit power allocation problem for the multi-band relay (MBR) channel. MBR is defined by a source node, a relay node, and a destination node communicating over multiple orthogonal bands. We focus on three relay transmission schemes: amplify-and-forward (AF), estimate-and-forward (EF), and compress-and-forward (CF) and study the optimum transmit source and relay power allocations to maximize the instantaneous achievable rate. We formulate iterative algorithms to find the power allocation for each scheme. It is shown that CF is always better than EF and AF. We observe that when the source-to-relay links are better than the source-to-destination links, EF and AF perform equally well. When the source-to-relay links are worse than source-to-destination links, AF performs better than EF.
AB - We investigate the optimum transmit power allocation problem for the multi-band relay (MBR) channel. MBR is defined by a source node, a relay node, and a destination node communicating over multiple orthogonal bands. We focus on three relay transmission schemes: amplify-and-forward (AF), estimate-and-forward (EF), and compress-and-forward (CF) and study the optimum transmit source and relay power allocations to maximize the instantaneous achievable rate. We formulate iterative algorithms to find the power allocation for each scheme. It is shown that CF is always better than EF and AF. We observe that when the source-to-relay links are better than the source-to-destination links, EF and AF perform equally well. When the source-to-relay links are worse than source-to-destination links, AF performs better than EF.
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U2 - 10.1109/CISS.2006.286668
DO - 10.1109/CISS.2006.286668
M3 - Conference contribution
SN - 1424403502
SN - 9781424403509
T3 - 2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings
SP - 1318
EP - 1323
BT - 2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 40th Annual Conference on Information Sciences and Systems, CISS 2006
Y2 - 22 March 2006 through 24 March 2006
ER -