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We investigated the adaptive power allocation in an point-to-point orthogonal frequency Division multiplexing (OFDM) cooperative system subject to the individual power constraint with an objective of maximize the sum transmission rate, and derived the optimal power allocation by assuming independent and identically distributed (i.i.d.) sub-channels in each Decode-and-Forward (DF) relay. To improve...
Most existing works on scheduling for cooperative OFDMA systems have focused on homogeneous users with the same service and demand. Although scheduling for service differentiated cooperative OFDMA systems have been discussed in some previous works, their schedule problems do not take the joint optimization of base-station and relay power into account. In this paper, we investigate the optimization...
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