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GLOBECOM
2008
IEEE
14 years 1 months ago
Impact of Constraints on the Complexity of Dynamic Spectrum Assignment
— In this paper we study the complexity of spectrum assignment problems in cognitive radio networks (CRNs) in the presence of several constraints. Although optimal spectrum assig...
Chetan Nanjunda Mathur, Mohamed A. Haleem, Rajarat...
ICASSP
2011
IEEE
12 years 11 months ago
Cooperative spectrum sensing based on matrix rank minimization
In cognitive radio (CR) networks, multi-CR cooperation typically takes place during spectrum sensing, to cope with wireless fading effects and the hidden terminal problem. The use...
Yue Wang, Zhi Tian, Chunyan Feng
ICASSP
2011
IEEE
12 years 11 months ago
Optimal transmission strategies for channel capture mitigation in Cognitive Radio Networks
Abstract—Temporal Dynamic Spectrum Access (DSA) in Cognitive Radio Networks exploits time gaps between the primary users transmissions. In this work, the fundamental performance ...
Yingxi Liu, Nikhil Kundargi, Ahmed H. Tewfik
JSAC
2008
202views more  JSAC 2008»
13 years 7 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
101views Education» more  CORR 2010»
13 years 4 months ago
Binary is Good: A Binary Inference Framework for Primary User Separation in Cognitive Radio Networks
Primary users (PU) separation concerns with the issues of distinguishing and characterizing primary users in cognitive radio (CR) networks. We argue the need for PU separation in t...
Huy Anh Nguyen, Rong Zheng, Zhu Han