User Partitioning Based Resource Assignment in Half-Duplex FDD Relaying Cellular Networks

This paper addresses aspects of radio resource management of a cellular network enhanced with two-hop fixed relay nodes (FRNs). The network is assumed to be working in the half-duplex FDD mode and have synchronized downlinks. To effectively manage the inter-cell interference, a reuse partitioning based resource partitioning framework is proposed. Under this framework, we develop a channel-aware intra-cell resource assignment scheme. According to this scheme, the available time-frequency resources are assigned, with the aid of channel-dependent user partitioning, in the way that can effectively increase cell capacity. It is demonstrated through intensive computer simulations that with our scheme the FRN enhanced network can remarkably outperform the conventional network without relaying. The performance superiority of our scheme over a known resource partitioning scheme for FRN enhanced network is reported as well.