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GLOBECOM
2007
IEEE
13 years 11 months ago
Cognitive Radio Networks: How Much Spectrum Sharing is Optimal?
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...
Sudhir Srinivasa, Syed Ali Jafar
CORR
2007
Springer
151views Education» more  CORR 2007»
13 years 5 months ago
Exploiting Multi-Antennas for Opportunistic Spectrum Sharing in Cognitive Radio Networks
—In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmi...
Rui Zhang, Ying-Chang Liang
GLOBECOM
2009
IEEE
13 years 9 months ago
Bargaining to Improve Channel Sharing between Selfish Cognitive Radios
We consider a problem where two selfish cognitive radio users try to share two channels on which they each have potentially different valuations. We first formulate the problem as ...
Hua Liu, Allen B. MacKenzie, Bhaskar Krishnamachar...
CORR
2010
Springer
248views Education» more  CORR 2010»
13 years 5 months ago
Optimal Spectrum Sharing in MIMO Cognitive Radio Networks via Semidefinite Programming
Abstract--In cognitive radio (CR) networks with multipleinput multiple-output (MIMO) links, secondary users (SUs) can exploit "spectrum holes" in the space domain to acce...
Ying Jun Zhang, Anthony Man-Cho So
TON
2010
175views more  TON 2010»
12 years 12 months ago
Cooperative Adaptive Spectrum Sharing in Cognitive Radio Networks
The cognitive radio (CR) paradigm calls for open spectrum access according to a predetermined etiquette. Under this paradigm, CR nodes access the spectrum opportunistically by cont...
Haythem Bany Salameh, Marwan Krunz, Ossama Younis