suggested type(s) of network to be deployed, expected traffic
generated by the service, maximum tolerable delay, device
powering, and an estimate of the feasibility of each service
with currently available technologies. From the table, it clearly
emerges that, in general, the practical realization of most
of such services is not hindered by technical issues, but rather
by the lack of a widely accepted communication and service
architecture that can abstract from the specific features of the
single technologies and provide harmonized access to the
services.