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.