摘要
传统的基于带宽请求的固定资源预留链路接入控制算法(BRLAC)不能适应网络状态和业务需求的变化,针对该类算法接入成功率和系统带宽利用率不高的问题,基于概率分析了系统预留带宽的大小,并提出一种动态带宽资源预留分配链路接入控制算法(DBRRA),该算法通过判断业务流优先级允许动态地从其他业务流调整预留带宽。仿真实验证明,DBRRA算法有较高的接入成功率、系统带宽利用率和较好的时延特性。
The traditional static resource reservation link access control algorithm based on bandwidth request can not adapt to the network state and business requirements, aiming at problems of low access success rate and low utilization ratio of bandwidth resource, the paper analyses the probability of bandwidth reservation, and proposes a link access control algorithm based on dynamic bandwidth resource reservation allocation. The algorithm allows adjusting bandwidth from other low level business traffic dynamically by judging the priority of business traffic. The experimental results demonstrate that the algorithm can improve the link access success proportion, system bandwidth utilization and have better delay character.
出处
《微型机与应用》
2012年第19期57-60,共4页
Microcomputer & Its Applications
基金
广东高校优秀青年创新人才培育项目(LYM08080)
茂名市科技计划项目(20101034
20091022)
关键词
预留策略
到达概率
优先级
可用带宽
时延
系统负载
reservation strategy
reach probability
priority level
available bandwidth
delay
system load
