c - rd: UMTS网络的呼叫接纳控制

2008 Proceedings of 17th International Conference on Computer Communications and Networks Pub Date : 2008-11-17 DOI:10.1109/ICCCN.2008.ECP.132

C. R. Storck, A. Ribeiro, Fátima Duarte-Figueiredo

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引用次数: 5

摘要

本工作提出了一种用于UMTS(通用移动地面系统)网络的呼叫接纳控制(CAC-RD)。它的主要挑战是保证最大的访问/网络可用性，同时保持令人满意的性能水平。它基于信道预留和网络诊断两种方案。它根据网络行为动态保留一些通道进行切换。诊断监视网络利用率，为CAC-RD决策提供信息。有一些利用率阈值驱动阻塞，告诉CAC-RD何时接受或不接受新调用。切换和会话类是CAC-RD的优先级。仿真结果表明，ca - rd可以保证网络的可用性，减少优先级阻塞，保证一定的网络QoS要求。模拟显示，在交接和新班级阻塞方面，平均分别减少了40%和11%。因此，结果表明，CAC-RD可以保证访问和QoS，保持性能和可用性之间的一致水平。

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CAC-RD: A Call Admission Control for UMTS Networks

This work proposes CAC-RD: a call admission control for UMTS (universal mobile terrestrial system) networks. Its main challenge is to guaranty the maximum access/network availability while maintaining satisfactory performance levels. It is based on two schemes: channel reservation and network diagnosis. It reserves dynamically some channels to handovers, based on the network behavior. The diagnosis monitors the network utilization giving information to the CAC-RD decisions. There are some utilization thresholds that drive the blockings, telling CAC-RD when to accept or not a new call. Handovers and the conversational class are the CAC-RD priorities. Simulation results show that CAC-RD can guarantee network availability, reducing priority classes blocking and guarantying some network QoS requirements. Simulations had shown an average reduction of 40% and 11% in handovers and new classes blockings, respectively. Thus, results indicate that CAC-RD can guarantee access and QoS, keeping levels of agreement between performance and availability.

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2008 Proceedings of 17th International Conference on Computer Communications and Networks

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