Fast Handover in Hierarchical Mobile IPv6 Based on Motion Pattern Detection of Mobile Node (original) (raw)
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One of the main goals in the design of Next Generation Wireless Networks is the possibility to keep the connectivity of a user while it moves among heterogeneous networks. The IETF (Internet Engineering task Force) has designed some protocols in order to solve this problem. One of them, Mobile IP, has been chosen as the core mobility management mechanism for wireless LANs and 4G cellular networks. One of the most critical stages of the mobility process is the handover management. The high delay of this phase is a limitation to seamless mobility. In this work, a detailed analysis about handover process has been presented. Moreover, movement detection is a very costly stage in handover mechanism so a new fast movement detection algorithm to improve this detection has been developed, called FDML3 (Fast Detection Movement Layer 3). Through the simulation of the algohoritm, the benefits of the proposed algohoritm have been shown in terms of handover latency compared to Mobile IPv6 mobility management protocol.
Advanced Mobility Handover for Mobile IPv6 Based Wireless Networks
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We propose an Advanced Mobility Handover scheme (AMH) in this paper for seamless mobility in MIPv6-based wireless networks. In the proposed scheme, the mobile node utilizes a unique home IPv6 address developed to maintain communication with other corresponding nodes without a care-of-address during the roaming process. The IPv6 address for each MN during the first round of AMH process is uniquely identified by HA using the developed MN-ID field as a global permanent, which is identifying uniquely the IPv6 address of MN. Moreover, a temporary MN-ID is generated by access point each time an MN is associated with a particular AP and temporarily saved in a developed table inside the AP. When employing the AMH scheme, the handover process in the network layer is performed prior to its default time. That is, the mobility handover process in the network layer is tackled by a trigger developed AMH message to the next access point. Thus, a mobile node keeps communicating with the current acc...
Performance Analysis of Fast Handover for Hierarchical MIPv6 in Cellular Networks
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
Next-generation wireless networks present an all-IPbased architecture integrating the existing cellular networks with Wireless Local Area Networks (WLANs), Wireless Metropolitan Area Networks (WMANs), wireless ad hoc networks, Wireless Personal Area Networks (WPANs), etc. This makes mobility management an important issue for users roaming among these networks/systems. On one hand, intelligent schemes needs to be devised to benefit the IP-based technology, on the other hand, new solutions are required to take into account global roaming among various radio access technology and support of real-time multimedia applications. This paper presents a comprehensive performance analysis of Fast handover for Hierarchical Mobile IPv6 (F-HMIPv6) using a proposed analytical model. Location update cost function, packet delivery cost function and total cost function are formulated respectively based on the fluid-flow mobility model. We investigate the impact of several wireless system factors, such as user velocity, user density, mobility domain size, session-to-mobility ratio on these costs, and present some numerical results.
In the context of Hierarchical Mobile IPv6 integrated with Fast Handover mechanism, this paper proposes two MAP selection algorithms, both based on the classification of users depending on their mobility. Furthermore an enhancement of one of the two algorithms is presented, it introduces the concept of bufferization at MAP level. Extensive simulations have been performed to analyse and investigate algorithms results.
Evaluating the Performance of Fast Handover for Hierarchical MIPv6 in Cellular Networks
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present an all-IP-based architecture integrating existing cellular networks with Wireless Local Area Networks (WLANs), Wireless Metropolitan Area Networks (WMANs), ad hoc networks, Bluetooth, etc. This makes mobility management an important issue for users roaming among these networks/systems. On one hand, intelligent schemes need to be devised to empower mobile users to benefit from the IP-based technology. On the other hand, new solutions are required to take into account global roaming among various radio access technologies and support of real-time multimedia services. This paper presents a comprehensive performance analysis of Fast handover for Hierarchical Mobile IPv6 (F-HMIPv6) using the fluid-flow and randomwalk mobility models. Location update cost, packet delivery cost and total cost functions are formulated based on the proposed analytical models. We investigate the impact of several wireless system factors such as user velocity, user density, mobility domain size, session-to-mobility ratio on these costs, and present some numerical results.
Enhanced Fast Handover for Mobile IPv6 Based on IEEE 802.11 Network
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In MIPv6, whenever a mobile node changes its attached point, handover process should be followed to inform its home agent and correspondent of the mobile node's current location. The handover process is decomposed into layer 2 and layer 3 handovers again, and these two handovers are accomplished sequentially, which causes long latency problem. This problem is a critical issue in MIPv6. To make up for this, we propose an enhanced fast handover scheme to reduce the overall latency on handover, revising the fast handover [1]. Especially, several messages in layer 3 are sent in one frame during layer 2 handover. We use cost analysis for the performance evaluation. Compared to MIPv6 handover scheme, the proposed scheme gains 79% improvement while it gains 31% improvement, compared to the fast handover.
The Rapid Vertical Handover for Efficient IPv6 Mobility Support in Heterogeneous Wireless Networks
Arabian Journal for Science and Engineering, 2013
The management techniques employed for Fast Mobile Internet Protocol version 6 (FMIPv6) and Media Independent Handover services between different wireless technologies are very important for completing the handover operations with the least possible delay. In the FMIPv6 technique, when a mobile node (MN) moves to another network, it needs to perform vertical handover (VHO) operations. These operations have a severe impact on the handover latency. In this article, we propose an enhanced network layer mechanism that is used to support fast handover for VHO. We introduce a new idea for the access router discovery method and propose a rapid VHO algorithm accordingly. Our proposal of a rapid VHO algorithm, a previous access router (pAR), rapidly provides a unique Ipv6 address instead of a new access router (nAR) for MNs. The binding updates to both the home agent and the correspondent node are performed from the pAR. We can observe from the results that by optimizing the network layer, the rapid VHO algorithm rapidly presents unique Ipv6 addresses for MNs with a minimum handover latency and packet loss even at high-speed movements. Finally, we presented an analytical model which shows that by enabling the access router discovery method and enhancing the network layer mechanism, an MN can perform fast handover processes with low handover latency compared with the FMIPv6 technique.
Simplified fast handover in mobile IPv6 networks
Computer Communications, 2008
The Fast Handovers for Mobile IPv6 (FMIPv6) protocol provides seamless handover; it uses anticipation based on layer 2 trigger information of the mobile node (MN) to obtain a new care-of address at the new link while still connected to the previous link, thus reducing handover delay. A bidirectional tunnel is then established between access routers to minimize packet loss during the handover. However, this method incurs higher signaling costs compared with the standard Mobile IPv6 protocol. In many cases, the mobile node cannot complete the fast handover in predictive mode due to lack of time, especially with high-speed movement of the mobile node. This paper proposes an enhancement to the FMIPv6, the Simplified Fast Handover in Mobile IPv6 Networks (SFMIPv6), which significantly reduces the anticipation time of the fast handover and thereby increases the probability that the protocol can perform the fast handover in predictive mode. In this paper, we also present performance evaluations in terms of the influence of two factors, the break-down point and the velocity of the MN, using evaluation models. The numerical results prove that the network performance of the proposed protocol is effectively improved compared to the original protocols, the FMIPv6 and Fast Handover Support in Hierarchical Mobile IPv6 (F-HMIPv6). Moreover, the results show that the proposed protocol could appropriately operate with high-speed mobile node movement.