A cooperative game-theoretic approach to cellular network hand-off

In cellular systems, one of the most significant metrics to measure quality of performance is the average number of call drops in a system. Hand-off mechanism ensures that the active calls in the system are successfully completed without being dropped in the mid communication. This seamless connectivity is achieved as the user moves around transferring active calls from one base station to another. In this paper, we study and propose a hand-off mechanism using cooperative game theory. Using a simple quality of service (QoS) utility function proposed in this paper, we conclude that our optimal deterministic hand-off strategy is to transfer the active calls to the base station with greater signal-to-interference and noise ratio (SINR) and greater number of available channels.