基于共享缓存的无线网络呼叫接纳控制算法

赵 玲，黄生叶
（湖南大学计算机与通信学院，长沙 410082）
摘要：针对移动网络中新的增值数据业务的增加、性能指标多样化的现状，提出了一种具有共享缓存、支持可变比特率业务的接入网系统模型，给出了性能参数的计算方法、兼顾分组层性能参数(丢包率和平均时延)和连接层性能参数的CAC算法，数值计算结果表明了该方法的正确性。
关键词：新用户呼损率；切换用户呼损率；丢包率；平均时延；服务质量；无线网络
Call Admission Control Strategy for Wireless Network Based on Shared Buffer
ZHAO Ling, HUANG Shengye
(College of Computer and Communication, Hunan University, Changsha 410082)
【Abstract】As more and more value-added data services are devoloped which require complex quality of service(QoS), this paper defines awireless access network model with shared buffer and derives mathematical expressions for some QoS parameters. It proposes a jointCACalgorithm considering both packet-level QoS and connection-level QoS. The numerical results proves correctness of the method.
【Key words】New call block probability; Handoff call block probability; Packet loss probability; Average delay; QoS; Wireless network