Design of Power Allocation for APSK Non-Coherent Spatial Modulation System

Aiming at solving the problem of performance loss associated with non-coherent spatial modulation (NCSM) differential detection, this paper proposes a novel power allocation concept to the system, and on this basis, it is also proposed to use a new amplitude phase shift keying (APSK) constellation design method. Simulation results show that the proposed novel power allocation APSK non-coherent spatial modulation (NPA-NCSM) achieves better error performance than the corresponding conventional APSK-NCSM system.