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MOBIX: System for managing mobility using information exchange

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2 Author(s)

It is evident that mobile devices of the future will have multiple wireless interfaces. For small, energy-constrained devices, determining network availability by keeping all radio interfaces turned on at all times will negatively impact battery lifetime even when these interfaces are idle. Predicting future network availability from user history requires a period of training and learning user habits. This method will fail when users deviate from their routines constantly or move to locations not visited before. We propose a different approach to determining network availability of mobile nodes which leverages on the fact that nodes on the move will meet other nodes who will be able to share conditions of networks they have recently encountered. This paper presents MOBIX, a system where nodes exchange information about network conditions using short-range communication such as Bluetooth. Our simulation results show that the required number of nodes needed for 100% success is not unrealistic of densely populated metropolitan areas. Even with relatively low population densities, we can expect a data store hit more than 50% of the time. Although our evaluation used WiFi, our scheme can easily be extended for other technologies such as GSM and WiMax.

Published in:

Mobile and Ubiquitous Systems: Networking & Services, MobiQuitous, 2009. MobiQuitous '09. 6th Annual International

Date of Conference:

13-16 July 2009

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