Movement-based location management for general cell residence times in wireless networks
Movement-based location management for general cell residence times in wireless networks
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DOI：
10.1109/tvt.2007.900377
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发表时间：
2007-09-01
影响因子：
6.8
通讯作者：
Takagi, Hideaki
中科院分区：
文献类型：
--
作者：
Rodriguez-Dagnino, Ramon M.;Takagi, Hideaki
移动的用户的位置管理在个人通信网络（PCN）中是最重要的，并且其主要目的在于促进呼入到目的地用户的传递以及更有效地利用网络资源。在实际的PCN中，位置管理算法需要以动态的方式跟踪移动的用户，并且最小化所生成的信令业务是设计关注的问题。在本文中，我们提出了基于动态移动的位置更新方案的成本分析。我们的模型是基于更新理论的参数，它是一般的，包括各种概率分布的超指数分布的位置区域的停留时间和指数分布的通话时间建模细胞停留时间（CRT）。我们比较了动态和静态方案的位置更新成本。我们提出了数值结果的指数和圆形CRT分布，并讨论了最佳阈值距离的位置更新，最大限度地减少成本的动态运动为基础的计划。
Location management of mobile users is of primary importance in personal communication networks (PCNs), and it is mainly aimed to facilitate the delivery of incoming calls to destination users and to make a more efficient use of network resources. In practical PCNs, the location management algorithms need to keep track of mobile users in a dynamic manner, and it is a design concern to minimize the generated signaling traffic. In this paper, we present the cost analysis for the dynamic movement-based location update scheme. Our model is based on renewal theory arguments, and it is general enough to include a variety of probability distributions for modeling cell residence times (CRTs) in hyperexponentially distributed location area residence times and exponentially distributed intercall times. We compare the location update cost for the dynamic and static schemes. We present numerical results regarding the exponential and circular CRT distributions and discuss the optimal threshold distance for location update that minimizes the cost of the dynamic movement-based scheme.