Concept

Amateur radio

Publications associées (48)

Optimal Linear Cooperation for Spectrum Sensing in Cognitive Radio Networks

Cognitive radio technology has been proposed to improve spectrum efficiency by having the cognitive radios act as secondary users to opportunistically access under-utilized frequency bands. Spectrum sensing, as a key enabling functionality in cognitive rad ...

IEEE2008

Small-scale robot formation movement using a simple on-board relative positioning system

Alcherio Martinoli, James Pugh

We explore the problem of small-scale multi-robot formation control using only an unsophisticated, on-board relative positioning module. The robotic setup and module are implemented and tested in a realistic virtual simulator, using standard formation type ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2008

Secure Neighbor Discovery in Wireless Networks: Formal Investigation of Possiblity

Jean-Pierre Hubaux, Panagiotis Papadimitratos, Marcin Poturalski

Wireless communication enables a broad spectrum of applications, ranging from commodity to tactical systems. Neighbor discovery (ND), that is, determining which devices are within direct radio communication, is a building block of network protocols and app ...

2007

Communication in a Swarm of Miniature Robots: The e-Puck as an Educational Tool for Swarm Robotics

Alcherio Martinoli, James Pugh, Christopher Cianci, Xavier Raemy

Swarm intelligence, and swarm robotics in particular, are reaching a point where leveraging the potential of communication within an artificial systempromises to uncover newand varied directions for interesting research without compromising the key propert ...

2007

Small-Scale Robot Formation Movement Using a Simple On-Board Relative Positioning System

Alcherio Martinoli, James Pugh

We explore the problem of smallscale multirobot formation control using only an unsophisticated onboard relative positioning module. The robotic setup and module are implemented and tested in a realistic virtual simulator, using standard formation types an ...

2006

Constrained Tracking on a Road Network

Matthias Grossglauser

Many applications of wireless ad hoc sensor and actuator networks (WSANs) rely on the knowledge of node locations. These are challenging to obtain when nodes are mobile and are not equipped with any expensive positioning hardware. In this paper, we are int ...

Springer Berlin / Heidelberg2006

Multi-radio Channel Allocation in Competitive Wireless Networks

Jean-Pierre Hubaux, Mark Felegyhazi, Mario Cagalj

Channel allocation has been extensively studied in the framework of cellular networks, but the emergence of new system concepts, such as cognitive radio systems, bring this topic into the focus of research again. In this paper, we provide a formal analysis ...

2006

Power line communications

Emmanuel Marthe

With the deregulation of the electricity and telecommunications markets, a great deal of new operators providing some innovative services have appeared. In the telecommunications' field, the promise of broadband Internet access with easy installation proce ...

EPFL2005

Cramer-Rao bounds for the estimation of multipath parameters and mobiles' positions in asynchronous DS-CDMA systems

Cyril Botteron

Commercial applications for the location of subscribers of wireless services continue to expand. Consequently, finding the Cramer–Rao lower bound (CRLB), which serves as an optimality criterion for the location estimation problem, is of interest. In this p ...

Institute of Electrical and Electronics Engineers2004

Standardisation problems related to conducted limits for power line communication equipment

Michel Ianoz

Feasibility studies performed in the last years have shown that the low voltage distribution network can be used for data transmission. The main problem is the possible radiation of electromagnetic field representing a the disturbance which can affect radi ...

2003

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