C6. Chip by chip iterative detection for spatial modulation aided multiple input Multiple Output system

Spatial modulation (SM) is a multiplexing Multiple Input Multiple Output (MIMO) transmission used to improve the spectral efficiency of wireless communication systems. The main idea of spatial modulation is that it takes the advantage of spatial position of each transmit antenna as an extra source of information to enhance the spectral efficiency. In this paper, a Chip by Chip iterative detector (CBC-ID) combined to the conventional SM is to be applied to spread information bits which is used to modulate the information into the constellation points. The antenna set is also applied to spreader before using it to assign the antenna number for information transmission. Analysis and simulations for flat fading channel shows that the proposed CBC-ID-SM-MIMO significantly outperforms the original SM system with the same data rate while maintaining the relatively low complexity. Monte Carlo simulation results obtained demonstrate that the analysis conducted showed significant improvements for the proposed scheme accuracy.