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| Why you should protect your wireless network with WPA |
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A gang using easily available software break
into a WEP protected wireless network and
find out what a surfer has been up to as well
as having access to his computer and his
internet connection.
Tags : WPA |
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Affichage : 138268
Durée : 348 s |
| Redes Wireless - Parte 2 de 4 |
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Com esse vÃdeo você aprenderá como fazer
uma rede wireless, uma das tecnologias mais
modernas quando o assunto é redes. Além
disso, a parte teórica explica com detalhe
padrões e significados sobre redes wireless
e outros tipos de rede.
Para comprar esse e outras vÃdeo-aulas,
acesso http://www.lojadigerati.com.br.
Tags : Redes Wireless Sem Fio Digerati |
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Affichage : 20887
Durée : 462 s |
| Brother MFC665CW Wireless Printer, Copier, Scanner, Fax... |
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Prices subject to change. Please visit
www.hsn.com or call 1-800-284-3100 for the
current selling price. Become a productivity
wizard with this Wireless All-In-One Printer,
Copier and Fax by Brother. It delivers fast,
professional quality document and photo
prints in the comfort of your own home, and
it works well with your PC and digital
cameras. Plus the built-in digital answering
machine and full duplex handset with
speakerphone let you handle home office
chores with ease. Brother MFC665CW All-in-One
Printer Features: Model No: MFC665CW Printer
Type: Multi-function inkjet Printer
Resolution: Up to 6000 x 1200 dpi (dots per
inch) - delivers photo quality prints Print
Speed: Up to 27ppm (pages per...
Tags : entertainment brother mfc665cw wireless |
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Affichage : 11521
Durée : 759 s |
| Device-free Passive Localization for Wireless Environments |
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Google Tech Talks
September 17, 2008
ABSTRACT
Typical location determination systems, for
example Global Positioning System (GPS),
require the presence of a physical device
that is attached to the object that is being
tracked. In addition, they usually require
the tracked device to participate actively in
the localization process by running part of
the localization algorithm or by extracting
the physical signals used in communication,
such as signal strength or time. In this
talk, we introduce the concept of Device-free
Passive (DfP) localization for outdoor
wireless networks. A DfP system is envisioned
to be able to detect, track, and identify
entities that do not carry any device, nor
participate actively in the localization
process. The system works by monitoring and
processing changes in the received physical
signals at one or more monitoring points to
detect changes in the environment.
Applications for DfP systems include
intrusion detection and tracking, protecting
outdoor assets, such as pipelines, railroad
tracks, and perimeters, and enhancing the
security of other detection systems.
In this talk, we will describe the DfP
system's architecture and the challenges that
need to be addressed to materialize a DfP
system. We show the feasibility of the system
by describing algorithms for implementing
different functionalities of a DfP system
that works with nominal WiFi equipment. We
present two techniques for intrusion
detection and a technique for tracking a
single intruder. Our results show that the
system can achieve very high probability of
detection and tracking with very few false
positives. We also identify different
research directions for addressing the
challenges of realizing a DfP system.
Speaker: Dr. Moustafa Youssef
Moustafa Youssef is an Assistant Professor at
Nile University, Egypt. He received his Ph.D.
degree in omputer science from University of
Maryland, USA in 2004 and a B.Sc. and M.Sc.
in computer science from Alexandria
University, Egypt in 1997 and 1999
respectively. His research interests include
location determination technologies,
pervasive computing, sensor networks, and
protocol modeling and analysis. Dr. Youssef
is the recipient of the 2003 University of
Maryland Invention of the Year award for his
Horus location determination technology.
Tags : google techtalks techtalk engedu talk talks googletechtalks education |
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Affichage : 2707
Durée : 2195 s |
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