Opportunistic relay selection scheme with frame aggregation

In conventional opportunistic relay selection schemes, one or multiple relay with better channel conditions are selected. However, if frame aggregation for improving MAC throughput is supported, each relay can have different amounts of data and thus conventional selection schemes may choose a worse relay with good channel conditions but little data. Therefore, we propose a novel opportunistic relay selection scheme when frame aggregation is adopted. In the proposed scheme, a relay is selected in a distributed manner by considering the amount of data as well as channel conditions, and therefore the most appropriate relay can be chosen.