Research on probability of call blocking delay in CR networks
感知无线电网络中的呼叫延迟阻塞概率研究*

Call admission control is a very important technology in wireless resource management, and it is one of the key schemes to decrease congestion, guarantee QoS and improve resource utilization. System resources in a given case, an accurate estimate of the user call blocking probability could provide an important basis for the network to be optimized building. This research based on queuing theory-birth and death process, explored the relationship between the probability of call blocking delay in CR networks and system resources. At the same time, gave an estimated formula. Simulation results show that it has a high degree of precision.