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TMC
2011
137views more  TMC 2011»
14 years 4 months ago
Cognitive Medium Access: Exploration, Exploitation, and Competition
— This paper establishes the equivalence between cognitive medium access and the competitive multi-armed bandit problem. First, the scenario in which a single cognitive user wish...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...
TWC
2010
14 years 4 months ago
Temporal Spectrum Sharing Based on Primary User Activity Prediction
Abstract--In this paper we investigate the opportunistic spectrum access in temporal domain where a secondary user shares a radio channel with a primary user during the OFF period ...
Ki Won Sung, Seong-Lyun Kim, Jens Zander
WIOPT
2010
IEEE
14 years 8 months ago
A contracts-based approach for spectrum sharing among cognitive radios
Abstract—Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arise...
Dileep M. Kalathil, Rahul Jain
JSAC
2008
202views more  JSAC 2008»
14 years 9 months ago
Cognitive Wireless Mesh Networks with Dynamic Spectrum Access
Wireless Mesh Networks (WMNs) are envisaged to extend Internet access and other networking services in personal, local, campus, and metropolitan areas. Mesh routers (MR) form the c...
Kaushik R. Chowdhury, Ian F. Akyildiz
CORR
2010
Springer
248views Education» more  CORR 2010»
14 years 9 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