Distributed Resource Allocation for the MARC with Amplify and Forward and Partial CSI

Within this paper we address the resource allocation problem for the Multiple Access Relay Channel, where the relay does Amplify and Forward, the channel access is controlled by OFDMA and only local Channel State Information is available to the nodes of the network. We derive a distributed resource allocation scheme for Amplify and Forward that uses statistical information where actual Channel State Information is not available. It splits the mixed-integer programming problem into separate resource allocation problems that can be solved by each node individually. Furthermore, we determine and optimise an approximation of the average throughput in a Hybrid Automatic Repeat Request system and we show that the loss caused by partial Channel State Information can be reduced significantly exploiting diversity.