標題: | A Stop-or-Move Mobility model for PCS networks and its location-tracking strategies |
作者: | Tseng, YC Chen, LW Yang, MH Wu, JJ 資訊工程學系 Department of Computer Science |
關鍵字: | location management;location update;mobile computing;paging;personal communication service;wireless communication |
公開日期: | 21-七月-2003 |
摘要: | This paper considers the location-tracking problem in PCS networks. Solutions to this problem in fact highly depend on the mobility patterns of mobile subscribers [ACM DIAL-M (1999) 72]. In the literature, many works have assumed a simple random walk model, where mobile subscribers always stay in a roaming state and can move in any direction with equal probability. In this paper, we propose a new Stop-or-Move Mobility (SMM) model, which is characterized by the following features: 'transition between stop and move', 'infrequent transition', 'memory of roaming direction', and 'oblivious in different moves'. Based on this mobility model, a static and an adaptive location-tracking Scheme are developed. The schemes only need to keep very little information for each user. Analyses and simulations are provided, which show that the proposed schemes are quite prospective. (C) 2003 Elsevier Science B,V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/S0140-3664(03)00112-9 http://hdl.handle.net/11536/27704 |
ISSN: | 0140-3664 |
DOI: | 10.1016/S0140-3664(03)00112-9 |
期刊: | COMPUTER COMMUNICATIONS |
Volume: | 26 |
Issue: | 12 |
起始頁: | 1288 |
結束頁: | 1301 |
顯示於類別: | 期刊論文 |