Comparative Study of Spatial Modulation and OFDM using QAM Symbol Mapping

The research on modern communication devices and demand for data services are seen increasing predominantly during the recent years. Even though a lot of new modulation schemes are available, there is a vital requirement of a scheme which preserves transmission bandwidth and power without losing the qualities of MIMO systems. This paper deals with the analysis and comparison of two advanced MIMO modulation schemes Spatial Modulation and Orthogonal Frequency Division Multiplexing, adopted for high performance digital transmission. The performance measures employed in this study are Bit Error Rate and Mean Square Error, assuming Quadrature Amplitude Modulation as the symbol mapping scheme.