西安电子科技大学学报(自然科学版)Issue(3):83-89,7.DOI:10.3969/j.issn.1001-2400.2015.03.015
一种方向性预测的位置管理算法
Algorithm improvement of directional location management
摘要
Abstract
In order to accurately calculate the cost of location management for the wireless cellular network,this paper puts forwards the predictive directional Markov chain as a mobility model based on the two-dimensional hexagon cellular structures.According to the location update model based on the two-steps paging strategy established between two consecutive arrival calls to get the optimal threshold of movement-based location management and the probability distribution of crossing the cell boundary K times on the condition that the incoming calls form a Poisson process and the MT’s cell residence time has exponential probability distribution. Then with these given probability distribution we give the optimal two-steps paging strategy.Finally,numerical results show that this strategy outperforms some well-known basic paging schemes.关键词
位置管理/位置更新/两步寻呼/开销分析Key words
location management/location update/two-step paging/cost analysis分类
信息技术与安全科学引用本文复制引用
陈杰,奚文,莫玮..一种方向性预测的位置管理算法[J].西安电子科技大学学报(自然科学版),2015,(3):83-89,7.基金项目
软件和集成电路产业发展专项资金资助项目(RX-RJJC-03-10-3803) (RX-RJJC-03-10-3803)