期刊名称：International Journal of Advanced Networking and Applications
电子版ISSN：0975-0290
出版年度：2009
卷号：1
期号：3
页码：175-180
出版社：Eswar Publications
摘要：Mobility is the mo st important feature of a wireless communication system. The mobile device needs to connect multiple points of connection and perhaps multiple networks as it moves from one location to another. Handover management is the way a network uses to maintain connection to a mobile user as it mo ves and changes its access point to the network. The IETF's mobile IP that uses mobile agents to support seamless handoffs, making it possible for mobile hosts to roam from subnet to subnet without changing IP addresses. To reduce the impact on the performance and the signaling overheads, hierarchical mobility management schemes define protocols that allow movements within a domain to be handled locally, witho ut involvement of the mobile node's home network. To reduce the packet losses during handoff, new schemes have been defined, such as smooth handoff. This paper surveys basic handover mechanisms with an analytical model of mobile Internet proto cols and also we have propose a novel performance model to evaluate the packet loss and packet delay for UDP streams that is involved in a handoff. The reason for this loss is identified and solutions to this problem are projected. This paper proposes methodology include mathematical models which is able to predict the handoff latency with empirical
关键词：Mobility Managemen t; Mobile IP; IPv4; IPv6; Smooth Handoff.
