LEO卫星网络基于动态位置区的寻呼策略  

Paging Schemes based on Dynamic Location Area for LEO Satellite Networks

作　　者：肖阳[1] 朱立东[1] 胡凡[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,四川成都610054

出　　处：《通信技术》2009年第1期336-338,共3页Communications Technology

基　　金：国家自然科学基金资助项目(60496313)

摘　　要：针对LEO卫星网络中具有自主定位能力的用户终端,采用基于地理位置的动态位置区划分方案,根据用户移动速度设置位置区的大小。在动态位置区的基础上,对高速移动用户提出了一种基于时延限制的分组寻呼策略。仿真结果表明,对于低速移动用户,二次寻呼策略的时延和开销性能最佳;对于高速移动用户,基于时延限制的分组寻呼策略最佳。Dynamic location area scheme based on geographical position is used for the user terminals with the ability of autonomous positioning of LEO satellite networks, to adjust the size of the area according to the velovity of user terminals. And then, based on the dynamic location area scheme, a new paging method fit for high speed user is proposed, which is know as location paging scheme under the delay restriction. The simulation results show that the twice paging scheme can get the best performance for low speed users and the packet paging scheme for high speed users.

关 键 词：LEO卫星网络 动态位置区 分组寻呼 

分 类 号：TN927[电子电信—通信与信息系统]