Channel Aware Adaptive Resource Allocation in Two-Hop Wireless Relay Networks

In this paper, channel aware adaptive resource allocation scheme in two-hop wireless relay networks (WRNs) is proposed to achieve maximum system throughput and better delay performance. Both the routing selection and resource scheduling algorithm are designed to accomplish the resource allocation scheme. Considering the network throughput, a routing algorithm is proposed to select the optimal RS based on an optimization problem. A fairly resource scheduling algorithm based on the Signal-to-Noise-Rate (SNR) is provided, which combined both the link and data scheduling. Both the routing and scheduling algorithms are designed with channel state considered. Theoretical analysis and simulation results show our proposed channel aware resource allocation scheme is efficient and can enjoy a good network performance in two-hop WRNs.