Multiple independent access networks and technologies.
(Frequent) connection dropouts.
(More) limited bandwidth.
Lacking of mobility awareness by system/applications.
Bandwidth cannot be improved just by adding parallel connections.
Spectrum is highly regulated.
Battery lifetime.
Limited capabilities.
Mobile devices counted by the 1.000 millions.
Cost(s) needs to be low.
Energy is becoming a problem.
Last updated 3 years ago