Abstract:

The effects on capacity complementary cumulative distribution functions (CCDFS) of multiple input multiple output (MIMO) channel caused by the different antenna array structures and indoor propagation environments of both line of sight (LOS) and nonline of sight (NLOS) cases are analyzed by using a 2D SBR (shooting and bouncing) ray -tracing method. Antenna array structures and indoor propagation environments affect the CCDFS significantly. 10% outage capacities show that in both LOS and NLOS indoor environments, there exist a fixed relationship that independent and identically distribution (i.i.d.) rayleigh channel capacities are larger than the capacities equipped with linear antenna array which are larger than the capacities equipped with rectangular antenna array or capacity equipped with circular antenna array. And the capacities of NLOS MIMO channel are larger than the capacities with LOS path. The results show these conclusions are very useful for designing MIMO system.

Key words: multiple input multiple output, ray tracing ； capacity complementary cumulative distribution functions； antenna array structure； outage capacity