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作者机构:Network Systems Laboratory Department of Computer Science and Information Technology University of the District of Columbia Washington DC United States University of Patras Patras Greece Dow Jones and Company South Brunswick NJ United States Adaptive Communications Networks Research Group Aston University Birmingham United Kingdom
出 版 物:《Information Systems Security》 (Inf. Syst. Secur.)
年 卷 期:2007年第16卷第5期
页 面:264-277页
学科分类:1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术(可授工学、理学学位)]
主 题:WIRELESS communication systems MOBILE computing ELECTRONIC data processing PORTABLE computers DATA transmission systems COMPUTER software DATABASES INFORMATION processing INTERNET protocols COMPUTER network resources
摘 要:Recent advances in mobile computing and wireless communication technologies are enabling high mobility and flexibility of anytime, anywhere service access for mobile users. As a result, network connections of such users often span over heterogeneous networking environments consisting of wired and wireless networking technologies. Both network heterogeneity and user mobility make the securing of data transmission over heterogeneous networks challenging and complex. In this paper, we focus on the challenge of providing secure end-to-end network transmissions to wireless mobile users. To minimize service interruption during ongoing secure sessions of mobile users, we present the design and implementation of an approach based on the well-known Internet Protocol Security (IPSec) standard. We conducted a performance evaluation of our implementation using a Voice over IP (VoIP) application over an actual network testbed. Our empirical performance results demonstrate a packet loss improvement of 17% to 34% (for various VoIP packet sizes) and a handoff delay improvement of almost 24% validating the high efficiency of our proposed approach. © 2007 Taylor & Francis.