207 search results - page 29 / 42 » Digitizing of UWB signals based on frequency channelization |
109
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DIALM
2005
ACM
14 years 11 months ago
2005
ACM
Wireless LANs operating within unlicensed frequency bands require random access schemes such as CSMA/CA, so that wireless networks from different administrative domains (for exam...
PCM
2009
Springer
15 years 2 months ago
2009
Springer
The security of content distribution is a critical issue that all the content providers have to treat seriously in order to guarantee their business. Emmanuel and Kankanhalli propo...
ICDCS
2010
IEEE
15 years 1 months ago
2010
IEEE
—Wireless communication is particularly vulnerable to signal jamming attacks. Spread spectrum mitigates such problem by spreading normal narrowband signals over a much wider band...
GLOBECOM
2007
IEEE
15 years 4 months ago
2007
IEEE
— Motorola Labs implemented an experimental cognitive radio system for use at the Dynamic Spectrum Access Networks (DySPAN) Symposium 2007. To exercise a practical communication ...
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TSP
2010
14 years 4 months ago
2010
In this paper, a practical approach for detecting packet-based orthogonal frequency division multiplexing (OFDM) signals in the presence of phase noise is presented. An OFDM packe...