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VTC
2006
IEEE
14 years 8 days ago
Effects of Bit Allocation on Non-Contiguous Multicarrier-Based Cognitive Radio Transceivers
— In this paper, we evaluate a cognitive radio transceiver employing both non-contiguous multicarrier modulation (NC-MCM) and adaptive bit allocation. Although NCMCM and bit allo...
Alexander M. Wyglinski
JSAC
2011
215views more  JSAC 2011»
13 years 1 months ago
Opportunistic Spectrum Sharing Schemes for CDMA-Based Uplink MAC in Cognitive Radio Networks
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
Xi Zhang, Hang Su
MOBICOM
2009
ACM
14 years 24 days ago
Revenue maximization and distributed power allocation in cognitive radio networks
Cognitive radio is an enabling technology that allows unlicensed users to opportunistically access the spectrum in order to enhance the spectrum efficiency. In this paper, we cons...
Shaolei Ren, Mihaela van der Schaar
INFOCOM
2008
IEEE
14 years 20 days ago
A Distributed Optimization Algorithm for Multi-Hop Cognitive Radio Networks
Cognitive radio (CR) is a revolution in radio technology and is viewed as an enabling technology for dynamic spectrum access. This paper investigates how to design distributed alg...
Yi Shi, Y. Thomas Hou
TWC
2010
13 years 29 days 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...