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卫星ATM交换系统中一种连接允许控制算法的改进 被引量:7

Connection Admission Control in Satellite ATM Switching System: A New Improved Strategy
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摘要 对于卫星ATM交换系统,连接允许控制(Connection Admission Control,CAC)是一个重要部分。针对卫星ATM中的一种连接允许控制算法—快速缓存分配法可能出现过高的信元丢失率提出了一种利用缓存器进行子波束再分配的改进方法,并采用流体流模型对改进后CAC算法进行了分析和仿真。结果表明,随着该改进方法所设置的缓存器容量的增加,信元丢失率明显下降。 Connection admission control (CAC) is an important part in satellite ATM switching system. A new improved strategy which utilizes the buffer to reallocate sub-beams is proposed which can solve the problem that high CLR (cell loss ratio) may happen in FBR (fast buffer reservation) algorithm in satellite ATM switching wystem. In addition, the improved FBR (IFBR) algorithm is analyzed and simulated by fluid flow model. The results show that increasing buffer size in IFBR algorithm can reduce CLR.
作者 黎军 周诠
出处 《宇航学报》 EI CAS CSCD 北大核心 2006年第3期513-517,共5页 Journal of Astronautics
基金 "十五"国防预先研究项目(11001040203)
关键词 卫星 ATM 连接允许控制 快速缓存分配法 Satellite ATM Connection admission control Fast buffer reservation
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参考文献8

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