MIMO cognitive radio capacity in flat fading channel

In this paper capacity of a cognitive radio (CR) system enabled with multiple input multiple output (MIMO) technology is derived and simulated under flat fading channel situation. Multiple input multiple output cognitive radio system provides effective spectrum utilization along with increased diversity gain as more number of antennas are used in the transmitting and receiving terminals. Derivation of capacity is done in flat fading channel situation following Rayleigh distribution. From the derived capacity formula, simulation is performed for different transmitting and receiving antennas and it is analyzed for the amount of information bits which a flat fading channel can process. This analysis will contribute for designing and developing MIMO CR systems which can be employed for wireless applications in smart cities.