Strong Interference and Spectrum Warfare

We consider a wireless system with multiple userbase pairs randomly distributed in some region, in which users try to greedily optimize their performance without any exchange of information between bases, and for which a fixed point is reached. This is a Nash equilibrium point for the system and corresponds to a simultaneous water filling solution. In this paper we focus on systems with strong interference for which the simultaneous water filling solution implies not an unique fixed point but a set of fixed points, among which the information theoretic capacities of users vary widely. We propose a dynamic game to move the system from a possible suboptimal point to a better simultaneous water filling fixed point, eventually to the optimal point.