文件名称:
Cross Layer Design for Mobile IP Handoff
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文件大小: 198kb
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上传时间: 2010-06-11
详细说明： Wireless and mobile Internet access has brought increased significance to the evolution of 3G packet-based communications and a vision of a future based on all-IP networking. To reduce handoff latency and signaling cost are two major issues. Certain link-layer technologies are capable of providing various link status information to the IP module. It has been identified that receiving explicit hints from the layer 2 (link layer) would expedite the layer 3 (network layer) movement detection process, which in turn will reduce the h andoff latency. In this paper, a likelihood function based method for implementing link layer hints is defined. Then the function is used to estimate layer 3 movement in two levels: (1) a mobile node is moving into a new subnet and (2) a mobile node is requiring an inter-system handoff. Next, the use of the likelihood function is applied to a pre-registration inter-system handoff protocol. Finally, performance analysis demonstrates significant gains in signaling cost from the proposed method. ...展开收缩
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