Amplify-and-Forward cooperative diversity schemes for multi-carrier systems and outage analysis

摘要

This paper proposes relay and subcarrier allocation schemes for Multi-Carrier (MC) system with Amplify-and-Forward (AF) relays, and derives analytical outage probability bounds of the schemes. Simulation results show that these bounds are very tight and better than the bounds obtained straightforwardly from the analysis in the Single-Carrier (SC) case. One of the proposed schemes, the Average Best Relay Selection scheme, is best suited for practical implementation since it approaches the best performance while minimizing the required amount of signaling.