An Administrable Shortcut Transmission scheme for OFDMA two-hop relay networks

In this paper, an Administrable Shortcut Transmission (AST) scheme in two-hop relay networks which enables two Subscriber Stations (SSs) within the same Relay Station (RS) communicate directly via RS´s forwarding has been investigated. The scenario of AST scheme in two-hop relay networks and a path selection algorithm based on the minimum slot number with AST scheme are put forward. The simulation results show that the system performance is improved significantly with the increase of the probability of AST scheme taken into account. Therefore, AST scheme could be a potential technology for improving system performance in next generation wireless networks.