Abstract
This paper addresses dynamic resource allocation (DRA) with power control for the downlink of a Spatial Divi- sion Multiple Access (SDMA) broadband multicellular wireless packet network with adaptive antennas. The main issue for dis- tributed DRA is how to manage the intercell interference, which is very difficult to handle in an uncoordinated environment, due to packet access and downlink beamforming. The issue of effi- ciently performing DRA and power control in such environment is still open. In this paper we propose to do the slot allocation distributedly with a rough estimate of the intercell interference, and the power control and beamforming in a centralized manner, after the allocation. This keep the computational effort low with respect to a completely centralized allocation algorithm. We show that the gap between a distributed algorithm with uncoordinated power control and a totally centralized allocation algorithm can be significantly reduced.
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