Cross-layer Design of Joint Relay Selection and Power Control Scheme in Relay-based Multi-cell Networks

It is demonstrated that the suitable relay selection or power control method is very important to network performance. However, there is little work concerning the combination of them in the multi-cell scenario. In this paper, we propose a cross-layer design to associate relay selection with power control scheme to increase the average network capacity, as well as to mitigate interference, where the criteria of relay selection is based on the maximum capacity. Then a path table is established to determine whether to perform the power control scheme. Finally, the comparisons of capacities among several methods are made to verify the effectiveness of the cross-layer method proposed in this paper.