Enhanced Spectral Efficiency of Spatial Modulation Based on Chirp Waveform

In this paper, a Modified Spatial Modulation Multiple-Input Multiple-Output-Chirp (MSM-MIMO-C) scheme is proposed to enhance the Spatial Modulation (SM) spectral efficiency. One of the drawbacks of SM is its limitation in increasing the data rates. Hence, in this proposal, we add new source information carrying which consist in using a battery of predefined chirps waveforms instead of a single waveform use. Obtained results are promising and outperform the ones of conventional SM in terms of Bit Error Rate (BER) and spectral efficiency.