Users may sometimes be overloaded with work so that they become temporally unable to handle incoming communications. Context aware systems are a promising approach to facilitate daily-life activities, especially providing assistance for communication management. After having surveyed the different challenges to build context-aware systems (e.g. modeling, reasoning about context), we introduce h...

ETHMICS is a testbed to investigate various aspects of multimedia communication in a high speed networked environment such as B-ISDN. With a view to realistic application experiments, a multimedia workstation has been developed, yielding new insights about workstation architecture and local access arrangements. In terms of software, ETHMICS is based on an object-oriented application framework. ...

Welcome to the Albatross Communication System! We’ve labored hard to bring you this exciting, and reliable product, from our laboratory to your home and your heart. The ACS is particularly tailored to withstand large BER fluctuations, competing radio traffic, and guarantees reliability to the applications that require it. We hope that our sample file transfer application will whet your appetite...

The wireless medium is often called a fading channel: the pejorative adjective suggests that the intrinsic temporal and frequency variations are an impediment to reliable communication. While not untrue, the channel fluctuations are turned from foe to friend in some scenarios. A concrete situation is when the time scale of communication is much larger than that of the channel fluctuations: the ...

High data rate is required for multimedia communication. But the communication at high data rate is always challenging. In this work we have successfully performed data chatting, Voice chatting and high quality video transmission between two distant units using MIMO adapter, Direct sequence spread spectrum system and MATLAB/SIMULINK platform.

The experimental study of a secure chaotic synchronized communication system is presented. The synchronization between two digital chaotic oscillators, serving as a transmitter-receiver scheme, is studied. The oscillators exhibit rich chaotic behavior and are unidirectionally coupled, forming a master-slave topology. Both the input information signal and the transmitted chaotic signal are digit...

As a first step in studying the application of the global positioning system (GPS) in a spatial audio communication system, an experimental platform was developed using commercial, off-the-shelf (COTS) GPS units: a Garmin Rino 120 (Rino) and a laptop. Software running on the laptop was developed to create a spatial-audio communication system based on GPS data and the two-way radio link on the R...

This paper proposes, using the Distribution Network (DN), the deployment of a common communication architecture to support different electrical services. The aim of the architecture proposed is to simplify the development of future smart grids in the current electrical systems.