Impact of antenna geometry on MIMO communication in indoor clustered channels

In this paper, we study the impact of different array configurations in indoor propagation environments. We measure the capacity/diversity gain attainable by different array geometries with seven elements and fixed interelement spacing. To make the discussion more concrete, we base our simulations on the IEEE 802.11n Technical Group (TC) clustered channel model. Our results show that averaged with respect to cluster location, uniform linear arrays often yield the highest capacity/diversity gains. However, in poor scatterer environments, and for compact arrays, the "Star" configuration provides the best system performance.