Performance Evaluation of MIMO System with Different Receiver Structures

Spatial diversity has attained great impact on future wireless communications; especially in multiple input and multiple output (MIMO) systems. MIMO technology permits for more effectual use of the radio spectrum and empowers sophisticated data rates, improved coverage, and enhanced reliability. MIMO is now a practical technology for medical and other healthcare facilities that are time-constrained. However, the recital of MIMO systems depends upon the effective channel modelling and the improvisation has been achieved by incorporating reliable receiver structures like matched filter, decorrelator, and minimum mean square error filtering (MMSE). Hence, the designer has to analyze the MIMO system in various fading environments in order to achieve high performance in terms of capacity, BER and throughput. Therefore, this work mainly focused on analyzing the recital of MIMO system in terms of capacity over Raileigh fading channel. Further, the capacity has been evaluated for various receiver structures having matched filter, decorrelator and MMSE filters. The capacity of MIMO system with different receiver structures has been evaluated for 2×2, 4×4, 8×8 MIMO configurations over Raleigh fading environment.