A novel self-organized optimization for wireless network nodes CAC mechanism

With the purpose of promoting the network access capacity, it starts with the self-similarity of the wireless network service and then analyzes the relationship among the hurst parameters, the service bandwidth and QoS indicators mathematically. On the basis of the analysis conclusion, a novel self-optimized call admission control mechanism is proposed in order to reduce the bandwidth utilization. And the novel mechanism is achieved and simulated. The results of simulation give the performance comparisons between the novel and traditional CAC in terms of call rejection probability and bandwidth utilization of the aggregated traffic.