| 摘要: |
| 在移动IP中,根据子网前缀以及均匀分布于区间[min,max]上的广告间隙,移动节点检测它自身是否移动.因此,区间的长度对于移动检测延时有直接的影响.然而,在移动IP中,区间的静态配置既不方便也不灵活.根据链路带宽的利用率,提出了一种动态调整区间的新方法,并且进行了理论分析.结果显示,与静态区间相比,动态区间的方法显著地减少了不必要的移动检测延时. |
| 关键词: 切换过程 移动检测 热心蜂窝切换 动态区间 广告间隙 更新过程 复合泊松过程 |
| DOI： |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60273021, 90104006 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant No.2003BA904B06 (国家技术研究发展划(863)) |
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| A Method for Reducing Movement Detection Delay Based on Dynamic Region |
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ZHAO Qing-Lin,LI Zhong-Cheng,ZHANG Yu-Jun,LI Jun,WANG Kai
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| Abstract: |
| In Mobile IP, MN detects its movement according to subnet prefix and router advertisement interval which forms a uniform distribution in the region [min,max]. Therefore, the size of this region has a direct impact on movement detection delay. However, this region is configured statically in Mobile IP, which is inconvenient and inflexible. In this paper, this region is adjusted by using the link bandwidth, and a movement detection delay formula is given. In addition, the proposed method is modeled and analyzed. All the results show that the dynamic region, compared with the fixed region, could reduce the unnecessary movement detection delay drastically. |
| Key words: handoff process movement detection eager cell switching dynamic region advertisement interval renewal process compound Poisson process |
