Rule-Breaks Effect on Decentralized Rule-Regulated "Good Neighbor" DSA Based on Adaptive Antenna Array Interference Mitigation Diversity

Decentralized dynamic spectrum allocation (DSA) that exploits adaptive antenna array interference mitigation (IM) diversity at the receiver, is addressed in interference limited environment with high level of frequency reuse. The system consists of base stations (BSs) that may belong to different providers in license-exempt spectrum, who can optimize uplink frequency allocation to their subscriber stations (SSs) to achieve the least impact of IM on the useful signal, assuming no control over band allocation of other BSs sharing the same bands. Mixed "selfish"/"good neighbor" DSA networks are studied by means of Markov chain analysis and simulations. The obtained quantitative results on the rule-breaks effect in the rule-regulated networks can be useful for development of spectrum sharing incentives and regulations.