Abstract:

An efficient coded cooperation scheme is proposed in multi-user cooperation system, which combines the number of partners and the diversity order of signal space diversity (SSD). Because of signal space diversity and iterative decoding, better performance is achieved at destination. The performance union bound of cooperative transmission in fading channel is deduced. Furthermore, performance is discussed by way of simulation and analysis, which is affected by diversity order of SSD、cooperation level and constellation mapping etc. The theoretical analysis and simulation results both show that additional gain is obtained by SSD in fast fading channel; better performance can be achieved at higher cooperation level and better constellation mapping in both fast and slow fading channel.