Cooperative Space Shift Keying for Multiple-Relay Network

A cooperative space shift keying (CSSK) scheme for multiple-relay decode-and-forward (DF) cooperative network is proposed. In CSSK scheme, the information of the source node (SN) is mapped into a distributed spatial domain constructed by multiple relay nodes (RNs), and retransmitted to the destination node (DN) during the cooperative phase. Besides the maximum-likelihood (ML) detector, a simplified piecewise-linear (PL) detector for CSSK is presented. In addition, the achievable diversity of the system is analyzed. The performance of CSSK is validated through Monte Carlo simulation results.