Model and Simulation of Channel Capacity for MIMO Wireless Navigation System

In order to study the basis of information theory for MIMO wireless navigation system, channel capacity formula of MIMO system which uses multi-sending and multi-receiving antennas was deduced from point of view of information theory. With a circularly symmetric complex Gaussian input signal vector and equally-distributed signal power through all the transmit antennas, a much higher capacity can be obtained compared to the traditional SISO system. Two typical MIMO systems corresponding to all 1´s and the unit transmission matrix were modeled completely for their channel capacity, followed by our proposed virtual equivalent structures. The simulation results were also given to testify the MIMO channel capacity.