Opportunistic Scheduling with Relay Selection in Wireless Multi-channel Relay Network

In this paper we study scheduling for selecting multiple relay nodes in orthogonal frequency division multiple access(OFDMA) relay network to enhance the system throughput.We propose an opportunistic scheduling model with relay nodes selection.The aim is to compromise between system throughput and user fairness with the constraint of channel assignment without interference.We propose two opportunistic scheduling algorithms in view of route diversity and link diversity,which combine relay selection and channel assignment to establish user route and optimally select user.Simulations show that the two algorithms can improve network throughput significantly and ensure user fairness.