A joint symbol detection algorithm efficient at low SNR for a Multi-Device STBC-MIMO system
In this paper, we present an algorithm for joint symbol detection (JSD) at the receiver in a Multi-Device (MD) STBC-MIMO System. We apply Cross Entropy Optimization (CEO) to JSD problem in a MD-STBC-MIMO system. We find that this algorithm has good performance especially at a low SNR region in a rank-deficient MD-STBC-MIMO system. ML detector, Sphere Decoder (SD) and Semi-definite relaxation (SDR) are computationally complex. The proposed CEO detector finds a nearly optimal solution in real time and also requires very low amount of computation as compared to the ML, SD and SDR.