A comparative study of the performance of precoded MIMO using Trellis and STBC

Abstract

Spatial modulation is a transmission technique that uses multiple antennas. It involves mapping of a block of information bits to two information carrying units, as a symbol chosen from constellation diagram and a unique transmit antenna number. The importance of Spatial modulation is that it increases overall spectral efficiency. In this paper we show the performance comparison of MIMO using Trellis Coded Spatial modulation, Space Time Block Coded Spatial modulation and New Trellis Coded Spatial modulation. And performance of each coding systems yields slightly different values. TCM concept is utilized to combat performance degradation of Spatial modulation in correlated channel conditions. Whereas the STBC-SM scheme is useful for high-rate, low complexity, emerging wireless communication systems such as LTE and WiMAX. The New SM-TC scheme offers significant error performance improvements over alternatives while having a lower decoding complexity for 2, 3, and 4 bits/s/Hz transmissions.