Mobile Hassles
Wireless connections limitations
Multiple independent access networks and technologies.
(Frequent) connection dropouts.
(More) limited bandwidth.
Lacking of mobility awareness by system/applications.
Spectrum limitations
Bandwidth cannot be improved just by adding parallel connections.
Spectrum is highly regulated.
Mobile device limitations
Battery lifetime.
Limited capabilities.
Scaling considerations
Mobile devices counted by the 1.000 millions.
Cost(s) needs to be low.
Energy is becoming a problem.
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