232 search results - page 21 / 47 » A Secondary Market for Spectrum |
68
Voted
MONET
2006
14 years 9 months ago
2006
Enabled by regulatory initiatives and advanced radio technology, more flexible opportunistic spectrum access has great potential to alleviate the spectrum scarcity. In this paper,...
90
Voted
GLOBECOM
2010
IEEE
14 years 7 months ago
2010
IEEE
Primary user emulation attack (PUEA) is a denial of service (DoS) attack unique to dynamic spectrum access (DSA) networks. While there have been studies in the literature to detect...
106
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GLOBECOM
2010
IEEE
14 years 7 months ago
2010
IEEE
In a cognitive radio network, the full-spectrum is usually divided into multiple channels. However, due to the hardware and energy constraints, a cognitive user (also called second...
GLOBECOM
2007
IEEE
15 years 4 months ago
2007
IEEE
— Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due ...
GLOBECOM
2009
IEEE
14 years 7 months ago
2009
IEEE
Collaborative spectrum sensing in cognitive radio networks has been proposed as an efficient way to improve the performance of primary users detection. In collaborative spectrum se...