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SSK Performance with SWIPT based Dual-Hop AF Relay over Rayleigh Fading

A cooperative communication system with space shift keying (SSK) modulation and simultaneous wireless information and power transfer (SWIPT) scheme is proposed. SWIPT can eliminate the need of external power supply at the relay whereas SSK modulation scheme reduces inter-channel interference, excludes inter antenna synchronization requirement and the number of radio frequency chains. An upper bound expression for the average bit error probability (ABEP) is obtained with multiple amplify-forward relays and a direct link from source node to destination node. Further, ABEP is analyzed for partial relay selection operation. Numerical and computer simulation results demonstrate performance improvement for SSK modulation combined with SWIPT.