An Enhanced Fast Handover with Low Latency for Mobile IPv6

Abstract

Abstract-One of the most important challenges in MobileIPv6 is to provide the service for a mobile node to maintain its connectivity to the Internet when it moves from one domain to another, which is referred to as handover. Here we deal with the fast handover problem, which is to provide rapid handover service for the delay-sensitive and real-time applications. In this paper, we propose an enhanced fast handover scheme for Mobile IPv6. In our scheme, each AR (Access Router) maintains a CoA (Care of Address) table and generates the new CoA for the MN that will move to its domain. At the same time, the binding updates to home agent and correspondent node are to be performed from the time point when the new CoA for MN is known by PAR (Previous AR). Also the localized authentication procedure cooperated with the proposed scheme is provided. For the comparison with the existing fast handover scheme, detailed performance evaluation is performed. From the evaluation results, we can see that the proposed enhanced fast handover scheme can achieve low handover latency and low packet delay.Index Terms-Mobility, mobile IPv6, fast handover scheme, enhanced fast handover scheme, performance analysis.

Novel Seamless Mobility Protocol for Next Generation Wireless Networks

“…It is obvious that MIPv6 is an elegant solution for global mobility. However, it has some inherent drawbacks [10] [11]. That is, when an MN changes its access point (AP), there is always a short period during which it cannot send or receive packets due to link switching and IP protocol operations.…”

“…Such a period is defined as handover latency [12]. MIPv6 mobility management process provides long handover delays, significant packet losses, and high mobility signaling overheads, thus unacceptable and detrimental for real-time applications, causing user-perceptible service deterioration during handover [11] [13] To improve the performance of MIPv6, many mobility protocols have been proposed by IETF and researchers at industry and university, such as FMIPv6 [5], HMIPv6 [4], FHMIPv6 [6] [7], simultaneous bindings for FMIPv6 or sbFMIPv6 [14], a novel FMIPv6 and HMIPv6 integration mechanism [15], enhanced fast handover with low latency for mobile IPv6 [16], simplified fast handover in mobile IPv6 networks [17], an efficient scheme for fast handover over HMIPv6 [18], seamless MIPv6 (SMIPv6) [19], to name a few. These solutions can be sorted into two categories: network architecture design and fast handover scheme.…”

MULTICAST-SUPPORTED FAST HANDOVER FOR Proxy Mobile IPv6

“…All the MNs are configured with a GPS receiver which is an overhead to the MNs and the proposed method could not perform well when the speed of the MN is high. Li et al (2008) propose to maintain a new CoA table which has fields like Active, Start Time and Valid Time at each Access Router (AR). When the handover anticipation trigger occurs, Previous Access Router (PAR) sends the information about the MN to the New Access Router (NAR).…”

An Enhanced Fast Handover Using Hierarchical Setup for Mobile IP

“…One of the most important challenges in Mobile IPv6 is to provide the service for a mobile node to maintain its connectivity to the Internet when it moves from one domain to another, which is referred to as handover [1]. Here we deal with the fast handover problem, which is to provide rapid handover service for the delay-sensitive and real-time applications.…”

“…Mobile IPv4 overcomes this by introducing a level of indirection at the network (IP) layer. It deploys a home agent that intercepts packets from the correspondent host and redirects these packets by tunneling them to the mobile node via a foreign agent in the visiting network [1]. This approach ensures correspondent host transparency and only requires the mobile node to update its location to the home agent when changing in between networks.…”