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ASIAMS
2009
IEEE
14 years 2 months ago
CSI Feedback Model in the Context of Adaptive Cognitive Radio Systems
Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and ...
Haleh Hosseini, Anis Izzati Ahmad Zamani, Sharifah...
JSAC
2011
219views more  JSAC 2011»
13 years 2 months ago
Detection of Small-Scale Primary Users in Cognitive Radio Networks
Abstract—In cognitive radio networks (CRNs), detecting smallscale primary devices, such as wireless microphones, is a challenging, but very important, problem that has not yet be...
Alexander W. Min, Xinyu Zhang, Kang G. Shin
GLOBECOM
2009
IEEE
14 years 2 months ago
An Auction-Based Incentive Mechanism for Non-Altruistic Cooperative ARQ via Spectrum-Leasing
— We propose and analyze a novel decentralized mechanism that motivates otherwise non-cooperative stations to participate as relays in cooperative ARQ protocol. Cooperation incen...
Igor Stanojev, Osvaldo Simeone, Umberto Spagnolini...
ICASSP
2011
IEEE
12 years 11 months ago
BEP walls for collaborative spectrum sensing
—The main focus of this paper is to present a performance limitation of collaborative spectrum sensing in cognitive radios with imperfect reporting channels. We consider hard dec...
Sachin Chaudhari, Jarmo Lundén, Visa Koivun...
TWC
2010
13 years 2 months ago
Stability analysis for cognitive radio with multi-access primary transmission
Abstract--This letter analyzes the impact, from a networklayer perspective, of having a single cognitive radio transmitterreceiver pair share the spectrum with multiple primary use...
Ioannis Krikidis, Natasha Devroye, John S. Thompso...