Self-coexistence in the dense case for white spaces

In this paper we look at the downlink interference mitigation problem in 802.22 wireless regional area networks. We study the case where the density of TV bands is such that a group of white space base stations can obtain access to only one communications channel, a scenario likely to occur close to urban centers. We propose a self-organizing power control and design strategy to mitigate interference among base stations as well as an optimal approach for the problem.