Study on 3D Spatial Wireless Channel Improvement of MIMO Based Satellite System

In this paper a 3D channel model for wireless communication is studied. Also this paper enlightens the difficulties of the analysis of 3D channel model as there are several geometric parameters are required to perform the analytical correlations and to see how the channel depends on those parameters. The reason for preferring MIMO systems which is based on information theory point of view is that it takes no extra cost concerning transmit power or bandwidth The advantage of MIMO systems is that, it provides 1)high gain 2)high directivity 3) space and multi user diversity gain 4)spatial multiplexing gain 5) array and coding gain,6)interference reduction .The 3D spatial channel model provides insight into spatial aspects of MIMO communication systems. The analytical correlation functions are used to compare the rate of MIMO & SIMO systems. It is noticed that the 3D model supports any arbitrary antenna array configuration as well as any distribution of scatters. In satellite systems significant rate gain can be obtained by the distributed MIMO systems.