移动支持协议移动管理代价研究-CiteSeerX.PDFVIP

ISSN 1000-9825, CODEN RUXUEW E-mail: jos@ Journal of Software, Vol.17, No.4, April 2006, pp.925−931 DOI: 10. 1360/jos170925 Tel/Fax : +86-10 © 2006 by Journal of Software. All rights reserved. ∗ 移动支持协议移动管理代价研究 赵阿群+ (北京交通大学 计算机与信息技术学院,北京 100044) Study on Mobility Management Cost of Mobility Support Protocols ZHAO A-Qun+ (School of Computer and Information Technology, Beijing Jiaotong University, Beijing 100044, China) + Corresponding author: Phn: +86-10 E-mail: zaq@, Zhao AQ. Study on mobility management cost of mobility support protocols. Journal of Softwar e, 2006,17(4): 925−931. /1000-9825/17/925.htm Abstract: The mobility management cost of mobility support protocols is studied. Firstly a suitable network model is proposed and the signaling overhead brought to network in order to support MHs’ (mobile host) mobility using various mobility support protocols is analyzed theoretically. On this base, a numerical simulation method is applied to compare the signaling overhead when only using mobile IP with introducing hierarchical mobility and when applying different micro-mobility protocols such as MIP-RR, CIP and HAWAII. The results show that introducing hierarchical mobility decreases the network signaling overhead observably comparing with only using mobile IP. In different micro-mobility protocols, the route maintenance strategy of deleting old routes explicitly brings less signaling overhead than frequently sending refresh messages periodically, and the route update method of sending route update messages to crossover MRA (mobile routing Agent) brings less signaling overhead than sending messages t