Abstract
In wireless mobile network, handoff dropping probability and new call blocking probability are main issues for satisfaction of quality of service (QoS) requirements. Seeking just to control handoff dropping probability and to optimize utilization without any consideration of fair allocation, serious unfairness occurs among new connections with different QoS requirements. In this paper, we propose a novel call admission control (CAC) scheme and resource management algorithm that guarantee both short-term and long-term fairness between heterogeneous services with different traffic properties and enhance resource utilization of system. These improvements are largely dependent of seeking reservation partition for each class based on stochastic control. We analyze the system model of a cell using two-dimensional Markov chain and Neut’s matrix-geometric solutions. By numerical analysis, we demonstrate that our CAC scheme actually achieves call blocking probability (CBP) fairness for wideband and narrowband calls and improve resource utilization.
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