On Utility-Fair Bandwidth Adaptation for Multimedia Wireless Networks

Adaptive bandwidth allocation is becoming very attractive in wireless communications since it can dynamically adjust the allocated bandwidth of ongoing calls to cope with the network resource fluctuations. In this paper, we present a utility-fair bandwidth adaptation scheme for multimedia wireless networks. With the proposed scheme, each call is assigned a utility function. Depending on the network load the allocated bandwidth of ongoing calls are upgraded or degraded such that all calls receive fair utilities. Simulation results show that our bandwidth adaptation scheme is effective in both achieving utility fairness and reducing the call blocking and handoff dropping probabilities of multimedia wireless networks