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Mobility Protocols and Handover Optimization: Design, Evaluation and Application by Ashutosh Dutta, Henning Schulzrinne

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Foreword

In today's world, ubiquitous computing and wireless Internet roaming have become the norm. Pervasiveness needs to support secured and seamless mobility among heterogeneous access networks. During a mobility event, the user of a mobile device changes its point of attachment, and the existing communication is degraded because of the need to manage mobility at multiple layers. Though protocols have been proposed to manage these different layers, there is no systematic method for comprehensive analysis of a mobility event. An optimized mobility management scheme would handle mobility efficiently without degrading quality of service.

While numerous mobility protocols for different layers have been designed to support these kinds of handoffs, most optimization techniques are ad hoc and tightly coupled to a specific mobility protocol. It is essential we develop optimization techniques in a systematic way, so that they may be applied to any type of mobility protocol. These would take into account factors such as security, configuration, authentication, quality of service, and the mobile's movement pattern.

By having a common framework and set of abstract functions that define mobility events, it will be easier to analyze any related protocol and derive associated optimization techniques. There is a dire need for a reference tool that details current best practices and provides a common framework to analyze the performance of mobility protocols and establish a set of versatile ...

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