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LEO卫星通信系统模糊逻辑动态位置区方案

A Scheme for Defining Dynamic Location Area Based on Fuzzy Logic in LEO Satellite Systems
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摘要 文章在基于自主定位的动态位置区方案的基础上提出了模糊逻辑动态位置区方案,通过对用户在给定时间内运动模式的判定来动态改变用户的更新半径,并仿真比较了用户在不同初始更新半径下两种方案的更新和寻呼开销,以及用户在不同模糊逻辑统计时间下的更新和寻呼开销。仿真结果表明用户在该方案下的位置管理总开销相对于普通动态位置区有了明显的降低,提高了位置管理效率。 A Scheme for defining fuzzy logic dynamic location area is proposed in this paper. User＇s location update radius is changed based on judging of a user＇s movement mode in a period of time. User＇s location update and paging cost of different update radius and fuzzy logic statistic time are compared separately. The results indicate that user＇s location management costs are less than in the normal dynamic location area scheme, and the location management efficiency is improved.
作者 孙灿 朱立东 吴诗其
机构地区 电子科技大学通信抗干扰技术国家级重点实验室
出处 《空间电子技术》 2010年第1期9-12,54,共5页 Space Electronic Technology
关键词 低轨卫星系统 位置区 模糊逻辑 运动模式 LEO satellite system Location area Fuzzy logic Movement mode
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献14

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二级参考文献5

  • 1[1]K.Narenthiran,R.Tafazolli and B.G.Evans.New Methodology for Defining Fixed Location Area in Mobile Satellite Communication Systems[J].Vehicular Technology Conference,2001,315-317.
  • 2[2]Guntsch.A.Mobility Management in An Integrated GSM and Satellite PCN[J].Vehicular Technology Conference.1996(3),28 April-1 May 1830-1834.
  • 3[3]MCNAIR,J.Location Registration and Paging in Mobile Satellite Systems Computers and Communication[J].IEEE Symposium 2000 5th Page(s):232-237.
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  • 5[5]Narenthiran K.,Tafazoli R.and Evans B.Evaluation of Location Tracking Schemes for Satellite UMTS[J].3G Mobile Communication Technologies.2000,March:381-386.

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空间电子技术
2010年 第1期

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