Proposal and Evaluation of a Function-Distributed Mobility Architecture for the Future Internet

SUMMARY Several task forces have been working on how to designthe future Internet in a clean slate manner and mobility management isone of the key issues to be considered. However, mobility managementin the future Internet is still being designed in an “all-in-one” way whereall management functions are tightly kept at a single location and this re-sults in cost inefficiency that can be an obstruction to constructing flexiblesystems. In this paper, we propose a new function-distributed mobilitymanagement architecture that can enable more flexible future Internet con-struction. Furthermore, we show the effectiveness of our proposed systemvia a cost analysis and computer simulation with a random walk mobilitymodel. key words: distributed mobility, future Internet, random walk model, costanalysis 1. Introduction Recently, societal requirements have become so compli-cated that the current Internet is struggling to meet themcompletely and it is now facing many challenging issues.In order to accomplish not only an incremental, but dras-tic innovation, many research works for new generationnetworks, in other words the future Internet, are being at-tempted from scratchall overthe world. High capacity, hugenumbers of devices, high reliability, as well as ecologicaland sustainable society support are among these challeng-ing issues. We can see high activities in future Internet re-search efforts [1] in order to support the requirements aboveand make our future life more prosperous and it is easy toimagine that supporting user mobility is one of those criticalfunctions.In the current IP network era,