Multi-Hop-Aware Cooperative Relaying

We address the drawbacks of Cooperative Relaying regarding its spectral inefficiency and its channel over reservation compared to direct transmissions. We propose to exploit routing information in cooperative relaying to reduce these disadvan- tages. In this paper we present a complete system design of Multi-Hop-Aware Cooperative Relaying and investigate different relay selection policies for it. Performance tests indicate that it significantly outperforms hop-by-hop cooperative relaying in terms of throughput. Index Terms—cooperative diversity, cooperative relaying, relay selection, D-STBC, routing