This paper describes a new approach to geographic load balancing in mobile cellular networks with fully adaptive antennas. Our previous work using cooperative negotiation and semi-smart antennas has been shown to be very effective, however, for fully adaptive antenna systems negotiation becomes increasingly complex because users need to be managed individually. A utility-based approach for geographic load balancing with fully adaptive antennas has been proposed and evaluated in this paper. Instead of cooperating by exchanging messages between base stations, it has encapsulated a form of cooperation into the utility function. This reduces the system complexity. A comparison of system performance using different utility functions and with the previous work is made. The results demonstrate the benefits of this approach.
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