Optimal Power and Resource Allocation For Half-Duplex Cooperative Multiple Access

Multiple access schemes in which the transmitting nodes are allowed to cooperate have the potential to provide higher quality of service than conventional schemes. In the class of half-duplex pairwise cooperative multiple access schemes in which channel state information is available at the transmitters, the allocation of transmission power and communication resources plays a key role in the realization of these quality of service gains. In this paper we propose a half-duplex cooperative multiple access scheme and develop an efficient algorithm for the joint allocation of power and the communication resources. We demonstrate that the new scheme can attain a significantly larger fraction of the achievable rate region for the full duplex case than an existing scheme that does not employ resource allocation.