A low-complexity detection algorithm for spatial modulation systems with multiple phase shift keying modulation

The multiple phase shift keying (MPSK)-based spatial modulation (SM) has attracted widespread attention for its advantage of low dependence on linearity of power amplier. There have been some low complexity detection algorithms, of which the computation complexity has not related to modulation order, but they often perform exhaustive search over transmit-antenna so that they are not suited to be used in large-scale transmitantenna systems. A novel detection algorithm which combines low complexity algorithms with adaptive signal vector detection theory is proposed. The analysis and simulation results show it not only has a further signicant reduction on computational complexity, but also remains same closely performance towards Maximum Likelihood (ML) optimum detection. So it oers a better trade-o between performance and complexity for MPSKbased SM systems. © 2016 ICIC International.