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Aggregating Bandwidth for Multihomed Mobile Collaborative Communities

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4 Author(s)
Sharma, P. ; Hewlett-Packard Lab., Palo Alto, CA ; Sung-Ju Lee ; Brassil, J. ; Shin, K.G.

Multihomed, mobile wireless computing and communication devices can spontaneously form communities to logically combine and share the bandwidth of each other's wide-area communication links using inverse multiplexing. But, membership in such a community can be highly dynamic, as devices and their associated WWAN links randomly join and leave the community. We identify the issues and trade-offs faced in designing a decentralized inverse multiplexing system in this challenging setting and determine precisely how heterogeneous WWAN links should be characterized and when they should be added to, or deleted from, the shared pool. We then propose methods of choosing the appropriate channels on which to assign newly arriving application flows. Using video traffic as a motivating example, we demonstrate how significant performance gains can be realized by adapting allocation of the shared WWAN channels to specific application requirements. Our simulation and experimentation results show that collaborative bandwidth aggregation systems are, indeed, a practical and compelling means of achieving high-speed Internet access for groups of wireless computing devices beyond the reach of public or private access points

Published in:

Mobile Computing, IEEE Transactions on  (Volume:6 ,  Issue: 3 )

Date of Publication:

March 2007

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