A SYSTEM AND METHOD FOR ACHIEVING HIGHER SPECTRAL AND ENERGY EFFICIENCY IN INDEX MODULATION TRANSCEIVERS

摘要

ABSTRACT The embodiments of the present invention provide a system and method for achieving higher spectral efficiency using an index modulation-based transmitter and detector. The design and performance analysis of TAS-STBC-ESM(F) transceivers comprises capacity optimized antenna selection, space time coding, multiple constellations. In this system index modulation-based transmitter and detector design for 20 bpcu is proposed which is termed Transmit Antenna Selected Space-Time Block Coded Enhanced Spatial Modulation with flexible coefficients TAS-STBC-ESM(F). Introduction of flexible coefficients, antenna selection and multiple constellations in the transmitter design improves 5.5 dB over Enhanced Spatial Modulation (ESM) scheme. The detection schemes based on BLAST architecture named Iter-BLAST and compressed sensing(CS) are proposed and their complexity is analysed. The secondary constellation points used for transmission are constructed based on linear and cubic spline interpolation techniques, which conserve the minimum Euclidean distance criterion. FIG.1