无线网络的一种动态多门限呼叫接入控制方案  

A Dynamic Multi-Threshold Call Admission Control Scheme in Wireless Networks

作　　者：段正华[1] 胡丹[1] 

机构地区：[1]湖南大学计算机与通信学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2004年第4期90-94,共5页Journal of Hunan University:Natural Sciences

摘　　要：针对无线网络的多类业务提出了一种呼叫接入控制方案.该方案基于动态保护信道机制,根据优先级为各类业务设置相应的服务门限,服务门限能根据系统负荷的变化动态地调整.仿真结果显示:与已有静态方案相比,该方案不仅能够保证业务的优先性,而且能够跟随业务量的实时变化,保持良好性能.For multi-traffic business in wireless networks, the paper proposes a call admission control scheme, which is built upon the concept of dynamic guard channels. The scheme sets service threshold for each traffic based on its priority, and dynamically adjusts service thresholds according to system load. Simulation results show that, compared with existing fixed schemes, the proposed scheme can not only guarantee the priority of traffic, but also maintain better performance with the real-time changes of the traffic volume.

关 键 词：多类业务 呼叫接入控制 服务门限 呼叫阻塞率 

分 类 号：TN929.53[电子电信—通信与信息系统]