14424 search results - page 164 / 2885 » Modeling Radio Networks |
130
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CORR
2008
Springer
15 years 3 months ago
2008
Springer
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
159
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GLOBECOM
2009
IEEE
15 years 1 months ago
2009
IEEE
Primary user emulation attack in multichannel cognitive radio systems is discussed. An attacker is assumed to be able to send primary-user-like signals during spectrum sensing peri...
140
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ICC
2007
IEEE
15 years 9 months ago
2007
IEEE
— In this work we develop Markovian models to study the dynamics of elastic calls in a cell served by HSDPA and WiMAX systems. We first present analytical models for interferenc...
109
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WOWMOM
2005
ACM
15 years 9 months ago
2005
ACM
IEEE 802.11 wireless local area networks that span large buildings or campuses must comprise multiple cells, several of which must necessarily be cochannel cells. It can be shown ...
136
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ICDCS
2003
IEEE
15 years 8 months ago
2003
IEEE
Internet radio and television stations require significant bandwidth to support delivery of high quality audio and video streams to a large number of receivers. IP multicast is a...