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中文摘要：
分析一种新的基于网络的区域移动性管理方案，并根据移动节点一维随机走动模型给出了性能分析的解析模型．根据解析模型，导出了位置更新费用和数据分发费用的公式．在此基础上分析了平均小区驻留时间和小区内移动节点数量对整个费用的影响，研究了整个费用如何随会话移动性比改变而变化，以及实现整个费用最小化的区域移动性管理域大小最佳值．分析结果表明，会话移动性比和区域移动性管理域大小是最小化总费用的最主要性能因素．
英文摘要：
This paper introduces a protocol for network-based localized mobility management solution, and develops an analytic model for the performance analysis based on one-dimensional random walk of mobile node. Based on the analytic models, the location update cost and the packet delivery cost are formulated. Then, the impacts of average cell residence time and user the number of mobile modes in a cell on the total cost are analyzed, respectively. In addition, the variation of the total cost is studied as the session-to-mobility ratio is changed and the optimal local mobility domain size to minimize the total cost is also investigated. The analysis results indicate that the session-to-mobility ratio and the local mobility domain size are critical perforimance factors in order to minimize the total cost.
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