Location management based on distance and direction for PCS networks

doi:10.1016/j.comnet.2006.04.014

	Location management based on distance and direction for PCS networks
	Feng, Li ; Zhao, Qinglin ; Zhang, Hanwen
	2007-01-17
发表期刊	COMPUTER NETWORKS
ISSN	1389-1286
卷号	51 期号:1 页码:134-152
摘要	This paper proposes a distance-and-direction-based location management scheme with a nonisotropic mobility model to capture the directional movement of an NIT, which remarkably reduces the total cost at the cost of a slight increase in the location update cost. In this scheme, whenever a distance threshold or a direction threshold is exceeded, a location update is performed. When a call arrives, the network pages the called MT within the paging area defined by the distance threshold and direction threshold. In addition, an online distance-and-direction calculation method, and an interactive distance-and-direction optimization algorithm are developed to dynamically adjust the paging area. We analyze this scheme using a Markov chain for both one-dimensional (1-D) case and two-dimensional (2-D) case. Specifically.. a good state coalition method is proposed to reduce sharply the computational complexity of the 2-D cost evaluation. Numerical results suggest that substantial cost saving can be obtained by fully utilizing the mobility direction information. Therefore, the proposed scheme outperforms the distance-based scheme. (c) 2006 Elsevier B.V. All rights reserved.
关键词	location management nonisotropic mobility model distance and direction
DOI	10.1016/j.comnet.2006.04.014
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Engineering ; Telecommunications
WOS类目	Computer Science, Hardware & Architecture ; Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000241715500009
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/11038
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Feng, Li
作者单位	1.Univ Hong Kong, Dept Math, Hong Kong, Hong Kong, Peoples R China 2.Chinese Univ Hong Kong, Dept Informat Engn, Hong Kong, Hong Kong, Peoples R China 3.Chinese Acad Sci, Comp Technol Inst, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Feng, Li,Zhao, Qinglin,Zhang, Hanwen. Location management based on distance and direction for PCS networks[J]. COMPUTER NETWORKS,2007,51(1):134-152.
APA	Feng, Li,Zhao, Qinglin,&Zhang, Hanwen.(2007).Location management based on distance and direction for PCS networks.COMPUTER NETWORKS,51(1),134-152.
MLA	Feng, Li,et al."Location management based on distance and direction for PCS networks".COMPUTER NETWORKS 51.1(2007):134-152.