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MOBIHOC
2009
ACM
14 years 5 months ago
Spectrum auction framework for access allocation in cognitive radio networks
Cognitive radio networks are emerging as a promising technology for the efficient use of radio spectrum. In these networks, there are two categories of networks on different chann...
Gaurav S. Kasbekar, Saswati Sarkar
SECON
2010
IEEE
13 years 2 months ago
A Two-Tier Market for Decentralized Dynamic Spectrum Access in Cognitive Radio Networks
Market mechanisms have been exploited as important means for spectrum acquisition and access in cognitive radio networks. In this paper, we propose a two-tier market for decentrali...
Dan Xu, Xin Liu, Zhu Han
TWC
2008
225views more  TWC 2008»
13 years 4 months ago
Joint rate and power allocation for cognitive radios in dynamic spectrum access environment
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
Dong In Kim, Long Le, Ekram Hossain
GLOBECOM
2009
IEEE
13 years 11 months ago
Model-Based Opportunistic Channel Access in Dynamic Spectrum Access Networks
Abstract—We propose a model-based channel access mechanism for cognitive radio-enabled secondary network, which opportunistically uses the channel of an unslotted primary network...
Manuj Sharma, Anirudha Sahoo, K. D. Nayak
GLOBECOM
2007
IEEE
13 years 11 months ago
Interference Model for Cognitive Coexistence in Cellular Systems
Abstract—Cognitive radio is a key enabling technology of dynamic spectrum access for exploiting unused spectrum resources. This article focuses on modeling the opportunity for ce...
Theodoros Kamakaris, Didem Kivanc-Tureli, Uf Turel...