Link layer assisted mobile IP fast handoff method over wireless LAN networks

Yokota, Hidetoshi; Idoue, Akira; Hasegawa, Takeshi; Kato, Toshihiko

doi:10.1145/570645.570661

Cited by 83 publications

(40 citation statements)

References 11 publications

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“…Alink layer assisted handover algorithm meant to enhance Received Signal Strength (RSS) value and thus, reduce the handover latency and handover failure is proposed in [16]. This algorithm employs an approach where access points used in a wireless LAN environment and a dedicated MAC bridge are jointly used to achieve packet loss without altering the Mobile IP specifications.…”

Section: Proposed Non-standard Vehicular Mobility Modelsmentioning

confidence: 99%

Maximisation of Correct Handover Probability and Data Throughput in Vehicular Networks

Banda

Mzyece

2015

JMMC

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In the past decade, the networking and automobile industry has experienced the emergence of vehicular networks which were developed under the Intelligent Transportation Systems (ITS) to provide a plethora of safety and non-safety related applications. The provision of seamless mobility and session continuity is one of the major challenges for the transmission of ITS applications in vehicular networks. This is more critical when a communicating node moves from one subnet to another, a process referred to as inter-subnet handover. In such a case, we deal with the problem of fast and seamless handover support for better Quality of Service (QoS) provisioning especially, for throughputsensitive and delay-intolerant ITS applications. In this paper, we propose a scheme aimed at improving the handover performance in IP-based vehicular networks by maximising the correct handover probability (P Correct ) and increasing the data throughput during inter-subnet handovers. We demonstrate the impact of mobile node's speed and direction of motion on both P Correct and data throughput via numerical analysis.

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Section: Proposed Non-standard Vehicular Mobility Modelsmentioning

confidence: 99%

Maximisation of Correct Handover Probability and Data Throughput in Vehicular Networks

Banda

Mzyece

2015

JMMC

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“…These approaches rely on clients initiating the handoff process, and do not address the link level handoff delay present in 802.11 networks when clients reassociates with another access point. Other approaches to intra-domain handoff, such as TMIP [28], [49], and [41], improve handoff latency in 802.11 networks but do not overcome these limitations. Other general approaches such as IDMP [21], SMIP [31], and HMIP [29] focus on hierarchy to reduce the global signaling load and improve scalability.…”

Section: Intra-domain Handoffmentioning

confidence: 99%

The SMesh wireless mesh network

Amir

Danilov

Musuăloiu-Elefteri

et al. 2008

ACM Trans. Comput. Syst.

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Wireless mesh networks extend the connectivity range of mobile devices by using multiple access points, some of them connected to the Internet, to create a mesh topology and forward packets over multiple wireless hops. However, the quality of service provided by the mesh is impaired by the delays and disconnections caused by handoffs, as clients move within the area covered by multiple access points. We present the architecture and protocols of SMesh, the first transparent wireless mesh system that offers seamless, fast handoff, supporting real-time applications such as interactive VoIP. The handoff and routing logic is done solely by the access points, and therefore connectivity is attainable by any 802.11 device. In SMesh, the entire mesh network is seen by the mobile clients as a single, omnipresent access point, giving the mobile clients the illusion that they are stationary. We use multicast for access points coordination and, during handoff transitions, we use more than one access point to handle the moving client. SMesh provides a hybrid routing protocol that optimizes routes over wireless and wired links in a multi-homed environment. Experimental results on a fully deployed mesh network demonstrate the effectiveness of the SMesh architecture and its intra-domain and inter-domain handoff protocols.

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“…This is particularly true in dynamic settings when the network conditions can change quite dramatically. For example, researchers have shown the utility of explicit congestion notification from the routers to the transport layer [16], and link status information to the IP layer in a wireless setting [20].…”

Section: Introductionmentioning

confidence: 99%

System Support for Cross-Layering in Sensor Network Stack

Kumar

PalChaudhuri

Reiss

et al. 2006

Lecture Notes in Computer Science

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Abstract. Wireless Sensor Networks are deployed in demanding environments, where application requirements as well as network conditions may change dynamically. Thus the protocol stack in each node of the sensor network has to be able to adapt to these changing conditions. Historically, protocol stacks have been designed with strict layering and strong interface between the layers leading to a robust design. However, cross-layer information sharing could help the protocol modules to make informed decisions and adapt to changing environmental conditions. There have been ad hoc approaches to facilitating cross-layer cooperation for adaptability. However, there has been no concerted effort at providing a uniform framework for cross-layer adaptability that preserves the modularity of a conventional protocol stack. This paper presents a novel service, information exchange service (IES), as a framework for cross-module information exchange. IES is a centrally controlled bulletin-board where different modules can post available data, or request for useful information, and get notified when the information becomes available. IES is integrated into the proposed SensorStack architecture that preserves the benefits of layering while facilitating adaptability. IES has been implemented in TinyOS and Linux, to show both the feasibility of the design as well as demonstrate the utility of cross-layering to increase application longevity.

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Link layer assisted mobile IP fast handoff method over wireless LAN networks

Cited by 83 publications

References 11 publications

Maximisation of Correct Handover Probability and Data Throughput in Vehicular Networks

Maximisation of Correct Handover Probability and Data Throughput in Vehicular Networks

The SMesh wireless mesh network

System Support for Cross-Layering in Sensor Network Stack

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