PROJECT TITLE :

Power Allocation-Aided Spatial Modulation for Limited-Feedback MIMO Systems

ABSTRACT:

Adaptive power allocation (PA) algorithms based on optimization of the minimum distance between signal points at the receiver facet are investigated in spatial modulation (SM) systems. First, a closed-form resolution of the optimal most- -aided PA algorithm comes in the case of two transmit antennas (TAs) . Moreover, for a higher variety of TAs, we tend to propose a numerical approach, that appropriately splits the power between the precise TA combine associated with to extend this distance. Furthermore, our PA-aided SM systems may be readily combined with adaptive modulation (AM) to further improve the system's performance. Our numerical results show that the proposed algorithms provide helpful system performance improvements compared with both the equal-gain PA-based SM and therefore the identical-throughput PA-aided spatial multiplexing systems.