Adaptive Spatial Modulation for Wireless MIMO Transmission Systems
IEEE Communications Letters, 15(6), pp 602-604, 2011-6
In this letter, an adaptive spatial modulation (ASM) transmission scheme is proposed to achieve better system performance under a fixed data rate. The proposed scheme is based on a developed modulation order selection criterion (MOSC), so as to minimize the conditioned pairwise error probability (PEP) for each channel realization. Furthermore, the special informationconveying mode of spatial modulation (SM) is utilized to reduce the complexity of the proposed algorithm. Simulation results show that the proposed adaptive SM scheme provides considerable system performance improvement compared to original SM system.
Adaptive spatial modulation; bit error ratio (BER); MIMO; pairwise error probability (PEP)