Spatial Modulation for MIMO Communication Systems

This work provides a review on the main spatial modulation (SM) schemes, suitable to wireless communication systems. Performance, complexity and diversity gain of the three new spatial SM schemes suitable for multiple-input-multiple-output (MIMO) communication systems are analyzed: a) transmission scheme for spatial modulation (SM) scheme; b) space shift keying (SSK) scheme; c) generalized space shift keying (GSSK) scheme. These three schemes offer low complexity, higher data rate when compared to single-input-single-output (SISO) communication systems, as well as design flexibility, while exploits randomness characteristics of wireless communication channel for data transmission. The paper aims to explore the main features of those three SM schemes and to evaluate the inherent performance-complexity trade-off in order to determine which of those schemes results in a higher energy and spectral efficiencies.