Google Tech Talks April 1, 2009 ABSTRACT Presented by Martin Vetterli A sensor network is a spatio-temporal sampling device with a wireless communications infrastructure. In this talk, after a short overview of the Center on Mobile Information and Communication Systems, where large scale ad hoc and sensor networks are being studied, we will address the following questions related to large sensor networks and their applications in environmental monitoring. 1. The spatio-temporal structure …

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CarTel is a distributed, mobile sensor network and telematics system. Applications built on top of this system can collect, process, deliver, analyze, and visualize data from sensors located on mobile units such as automobiles. A small embedded computer on the car interfaces with a variety of sensors in the car, processes the collected data, and delivers it to an Internet server. Applications running on the server analyze this data and provide interesting features for users. cartel.csail.mit.edu…

Distributed Sensor Networks

I have a scientific article by title:”Cross-Layer design in sensor network for Qos Based Applications” which I wanna accept that in a Research-Science Journal Or Conference as soon as possible. I Sent that for elsevier’s ComCom & Comnet and after that, for 2 conferences But they have got some problems about the Paper or said that’s not suitable ,for them, in subject.

There is a method for detecting computer virus attacks on a network computer that are sent from a remote host. These viruses reach the network through requests for communication (e.g. e-mail) that are identifies as “packets”. For example, the “WORM flood” virus ties up the network computer by “flooding” the network with multiple packets. Security experts can detect this type of virus attacks if at least 1 packet is observed by a network sensor.

Assume that the probability of observing a single packet sent from a new virus is only 0.001. If the virus sends 150 packets to a network computer, what is the probability that the virus is detected by the sensor?

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Tim Olmer uses a Hummer to show us how wireless sensor networks function. The demo is made as part of his graduation assignment at Working Tomorrow (www.workingtomorrow.nl), the graduation program of LogicaCMG (www.logicacmg.nl) in Holland.

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