摘要
有效的呼叫接纳控制(CAC)算法不但能够满足CDMA蜂窝系统不同业务的QoS要求,而且能够提高系统资源利用率。文章提出一种基于多业务的动态混合判决CAC算法,在判决时,该算法根据系统剩余容量和各业务优先级来为高优先级业务预留资源;在接入自相似业务时,该算法利用概率接入策略来判断是否接入一个新呼叫。仿真结果显示,本文提出的算法可以有效降低阻塞率,提高系统性能。
An efficient call admission control arithmetic is essential to provide QoS guarantee of different services to enhance the utilization of radio resource in CDMA systems. This paper presents the multi-class services dynamic mixed adjudgement CAC arithmetic. This arithmetic adjudges a new coming call whether to accept or not based on them which are residual resource, the priority of all services and the resource reservation for high priority. When self similarity service is coming, it uses probability access. The results show that this arithmetic can keep better performance.
出处
《信息工程大学学报》
2008年第4期404-407,共4页
Journal of Information Engineering University
基金
国家863计划资助项目(2007AA01Z434)
