A New MIMO Channel Representation Including Spatial Diversity, Array Orientation and Depolarization Effects



Ramya Bhagavatula, Robert W. Heath, Jr., and Claude Oestges.


Proc. of the IEEE AP-S International Symposium, San Diego, July 5-12, 2008.


The significant growth in multiple-input multiple-output (MIMO) communication technology has led to the development of a number of channel models to characterize the wireless propagation environment for multiple antenna systems. Deterministic models like ray-tracing are site-specific. They can usually be quite accurate, at the price of a high computational cost and an accurate environment database. Analytical models are more general in nature and comparatively tractable. However, they do not account for a number of effects seen in the actual wireless propagation environment. In this paper, we propose to develop an analytical channel model that accounts for propagation effects like scattering, clustering and channel depolarization (change in polarization due to scattering), spatial, polarization and pattern diversities, mutual coupling effects and cross-polarization, seen in an actual propagation environment, and still retains analytical tractability.


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