Fast handover support in a WLAN environment: challenges and perspectives
TL;DR: It is shown that the behavior of the protocol is highly dependent on the timely availability of link layer information, and is applied to a WLAN environment running fast mobile IPv6 and study the improvements in fast handoff support.
Abstract: While handover management has traditionally used radio-technology-specific mechanisms, the need for integration of this diverse network environment has obviated the "push" of the handover functionality to the generic IP layer that serves the rendezvous point of underlying technologies. In this context, we study and analyze the implications of the link-layer agnostic operation of IP handover control on handover performance, having as a reference the fast mobile IPv6 protocol. We show that the behavior of the protocol (i.e., whether a reactive or proactive operation will be executed) is highly dependent on the timely availability of link layer information. A non-exhaustive list of generic link-layer triggers used for this purpose, as identified by the IEEE 802.21 WG, is also presented. Last, we apply this generic framework to a WLAN environment running fast mobile IPv6 and study the improvements in fast handoff support.
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TL;DR: A three-layer framework (sensing, communication and control) through which automotive security threats can be better understood is proposed, which provides the state-of-the-art review on attacks and threats relevant to the communication layer and presents countermeasures.
152 citations
01 Apr 2011
TL;DR: The requirements of mobility management for vehicular networks are identified, and the existing mobility management schemes are reviewed based on two communication scenarios in Vehicular networks, namely, vehicle-to-vehicle (V2V) and vehicle- to-infrastructure (V1I) communications.
Abstract: Mobility management is one of the most challenging research issues for vehicular networks to support a variety of intelligent transportation system (ITS) applications. The traditional mobility management schemes for Internet and mobile ad hoc network (MANET) cannot meet the requirements of vehicular networks, and the performance degrades severely due to the unique characteristics of vehicular networks (e.g., high mobility). Therefore, mobility management solutions developed specifically for vehicular networks would be required. This paper presents a comprehensive survey on mobility management for vehicular networks. First, the requirements of mobility management for vehicular networks are identified. Then, classified based on two communication scenarios in vehicular networks, namely, vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications, the existing mobility management schemes are reviewed. The differences between host-based and network-based mobility management are discussed. To this end, several open research issues in mobility management for vehicular networks are outlined. Copyright © 2009 John Wiley & Sons, Ltd.
148 citations
TL;DR: In this paper, the authors present IPv6 features to support mobile systems and survey the mobility management services along with their techniques, strategies and protocol categories, and elaborate upon the classification and comparison among various mobility management protocols.
102 citations
01 Feb 2019
TL;DR: In this paper, the authors propose a holistic analysis and classification of the main design principles and enabling technologies that will make it possible to deploy low-latency wireless communication networks and discuss open problems for future research.
Abstract: While the current generation of mobile and fixed communication networks has been standardized for mobile broadband services, the next generation is driven by the vision of the Internet of Things and mission-critical communication services requiring latency in the order of milliseconds or submilliseconds. However, these new stringent requirements have a large technical impact on the design of all layers of the communication protocol stack. The cross-layer interactions are complex due to the multiple design principles and technologies that contribute to the layers’ design and fundamental performance limitations. We will be able to develop low-latency networks only if we address the problem of these complex interactions from the new point of view of submilliseconds latency. In this paper, we propose a holistic analysis and classification of the main design principles and enabling technologies that will make it possible to deploy low-latency wireless communication networks. We argue that these design principles and enabling technologies must be carefully orchestrated to meet the stringent requirements and to manage the inherent tradeoffs between low latency and traditional performance metrics. We also review currently ongoing standardization activities in prominent standards associations, and discuss open problems for future research.
101 citations
18 Apr 2006
TL;DR: An enhanced handover mechanism with new additional primitives and parameters to the media independent handover (MIH) services defined in the IEEE 802.21 can reduce handover latency for mobile IPv6 (MIPv6) by removing the router discovery time and can increase the probability that the FMIPv 6 can be performed in predictive mode.
Abstract: In this paper, we propose an enhanced handover mechanism with new additional primitives and parameters to the media independent handover (MIH) services defined in the IEEE 802.21. The proposed scheme can reduce handover latency for mobile IPv6 (MIPv6) by removing the router discovery time. Moreover, when the proposed mechanism is applied to the FMIPv6, we can increase the probability that the FMIPv6 can be performed in predictive mode by reducing the handover initiation time, thereby we can reduce the expected handover latency in the FMIPv6. In addition, with the proposed scheme, we can design the network cost-effectively by reducing coverage overlap between adjacent cells because the handover initiation time in the FMIPv6 is decreased.
87 citations
References
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01 Dec 1998
TL;DR: This document specifies the Neighbor Discovery protocol for IP Version 6.
Abstract: This document specifies the Neighbor Discovery protocol for IP Version 6. IPv6 nodes on the same link use Neighbor Discovery to discover each other's presence, to determine each other's link-layer addresses, to find routers and to maintain reachability information about the paths to active neighbors.
1,586 citations
"Fast handover support in a WLAN env..." refers background in this paper
...The protocol, however, performs satisfactory with respect to the achieved handoff disruption time in the presence of link-layer triggers, as elaborated on in the following section....
[...]
01 Jul 2005
TL;DR: In this paper, a protocol to improve the handover latency due to Mobile IPv6 protocols is proposed, which is beneficial to non-real-time, throughput-sensitive applications as well.
Abstract: Mobile IPv6 enables a Mobile Node to maintain its connectivity to the
Internet when moving from one Access Router to another, a process
referred to as handover. During handover, there is a period during
which the Mobile Node is unable to send or receive packets because of
link switching delay and IP protocol operations. This "handover
latency" resulting from standard Mobile IPv6 procedures, namely
movement detection, new Care of Address configuration, and Binding
Update, is often unacceptable to real-time traffic such as Voice over
IP. Reducing the handover latency could be beneficial to non-real-
time, throughput-sensitive applications as well. This document
specifies a protocol to improve handover latency due to Mobile IPv6
procedures. This document does not address improving the link
switching latency. This memo defines an Experimental Protocol for the
Internet community.
1,303 citations
01 Aug 1996
TL;DR: This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6.0, including creating a link-local address and verifying its uniqueness on a link, and determining what information should be autoconfigured.
Abstract: This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6. The autoconfiguration process includes creating a link-local address and verifying its uniqueness on a link, determining what information should be autoconfigured (addresses, other information, or both), and in the case of addresses, whether they should be obtained through the stateless mechanism, the stateful mechanism, or both. This document defines the process for generating a link-local address, the process for generating site-local and global addresses via stateless address autoconfiguration, and the Duplicate Address Detection procedure. The details of autoconfiguration using the stateful protocol are specified elsewhere.
1,243 citations