Fading and interference mitigation using a greedy approach

In this paper, we propose a greedy algorithm based on a combined space time (ST) code and multimode beamformer (a generalized space time code) to mitigate the effect of fading and interference in a multi-cell system. This is a competitive scheme in which each user acts selfishly to minimize the error probability to its own receiver until an equilibrium is reached. We prove the existence of a Nash equilibrium and find the conditions under which the algorithm converges to this equilibrium. Finally, we demonstrate the performance of the algorithm by numerical simulations