Signal Detection Techniques for Spatially Multiplexed MIMO Systems

In this article signal estimation techniques for Spatially multiplexed MIMO (SM-MIMO) systems are exploited. MIMO systems with spatial multiplexing can transmit data at high rate than similar systems equipped with antenna diversity techniques. The signal detection using Spatial multiplexing is a difficult task at the receiver side in present scenario of Wireless Communication System. A variety of signal estimation techniques have been discussed, analyzed and compared under different channel conditions. Exploitation of diversity is also taken into consideration and improvement in performance of system is observed. The results have been obtained by plotting the SNR and BER curves for various techniques. In this paper various expressions of BER performance for hard and soft decisions have been presented and comparative analysis for various parameters like quantity of antennas and SNR values have been performed for system improvement. Simulation outcomes reveal that the improvement can be enhanced by varying the selected antennas and SNR of the system.