DF/AF cooperative relay in LTE-A

This paper deduces six possible cooperative relays from the procedure of Decode-and-Forward relay, and designs their soft combining schemes accordingly. All these schemes are designed for LTE-A system, by the principle of being compatible and making minimum modification to the current LTE system. Among the co-relay schemes, some of them are with high forwarding efficiency, and some of them are efficient on the computational complexity.