We investigate the effects of user cooperation on the secrecy of broadcast channels by considering a cooperative relay broadcast channel. We show that user cooperation can increase...
Data Grids have been adopted as the next-generation platform by many scientific communities that need to share, access, transport, process and manage large data collections distri...
: This paper addresses the role of Personal Digital Assistants (PDAs) in electronic meetings. Several real-world scenarios of PDA usage in meetings are defined using a pattern lang...
Gustavo Zurita, Pedro Antunes, Nelson Baloian, Lu&...
The finite volume method is used as a numerical method for solving the fluid flow equations. This method is appropriate to employ under structured and unstructured meshes. Mixed g...
Erwin Doescher, Haroldo F. de Campos Velho, Fernan...
: The Third Generation (3G) cellular networks provide ubiquitous connectivity but low data rates, whereas Wireless Local Area Networks (WLANs) can offer much higher data rates but ...