Sensor networks are large scale networks of low-power devices that collaborate in order to perform a given task. The sensors are limited in battery energy, capacity and computatio...
Short Message Service (SMS) has become extremely popular in many countries, and represents a multibillion dollars market. Yet many consumers consider that the price cellular netwo...
Exploiting directional antenna technology in wireless networks has become an attractive option because of the potential capacity increase through spatial reuse. Such development a...
Mobility, context-awareness and payment combined provide a customer with a completely new setting of consuming services at any time and any place. We introduce SmartRestaurant ser...
By analogy with an approach widely used in physics, we consider a discrete set of base stations (BS) as a continuum of transmitters. This model allows us to establish a simple clos...