Efficient Single Relay Selection Scheme for Cooperative Communication

This paper proposes a single relay selection scheme in 
cooperative communication. Decode-and-forward scheme is 
considered when a source node wants to cooperate with a single relay 
for data transmission. To use the proposed single relay selection 
scheme, the source node makes a little different pattern signal which is 
not complex pattern and broadcasts it. The proposed scheme does not 
require the channel state information between the source node and 
candidates of the relay during the relay selection. Therefore, it is able 
to be used in many fields.