Abstract
In this paper, we consider a buffer-aided two-way relay networks with two end nodes and N relay nodes. With the objective of maximizing throughput and network life time, a new residual energy based relay selection and joint scheduling scheme is proposed. In the proposed scheme, we jointly consider the channel state information (CSI), buffering capacity and residual energy status of the relay nodes. The relay selection metric based on the CSI can guarantee to obtain better channel gain. And that considering both buffer occupancy information and residual energy of relay nodes can ensure the quality of the service (QoS) of transmission. Next we make a comparison with the existing scheduling schemes in two-way relay networks. And simulation results illustrate that the proposed scheme in this paper can achieve larger throughput gain than the existing scheduling schemes.
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