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ICC
2008
IEEE
115views Communications» more  ICC 2008»
14 years 3 months ago
Sliding-Window Algorithm for Asynchronous Cooperative Sensing in Wireless Cognitive Networks
—To improve the performance of spectrum sensing, cooperation among Cognitive Radios (CRs) has been proposed recently as an effective solution. Most existing works require either ...
Chengqi Song, Qian Zhang
GLOBECOM
2009
IEEE
14 years 3 months ago
Cognitive Radio Enhancements for Legacy Networks Using Cooperative Diversity
Abstract— Two driving goals for cognitive radio (CR) technique are maximizing spectrum utilization and avoiding interference to primary users. In this paper, we deal with the CR ...
Zhanwei Sun, Ioannis Krikidis, J. Nicholas Laneman...
JSAC
2011
171views more  JSAC 2011»
12 years 11 months ago
QoS Provisioning for Heterogeneous Services in Cooperative Cognitive Radio Networks
—In this paper, we propose a spectrum allocation framework that jointly considers the Quality-of-Service (QoS) provisioning for heterogeneous secondary Real-Time (RT) and Non-Rea...
Ammar Alshamrani, Xuemin (Sherman) Shen, Liang-Lia...
GLOBECOM
2010
IEEE
13 years 6 months ago
Joint Optimization of Spectrum Sensing for Cognitive Radio Networks
Abstract--Cognitive radio networks require fast and reliable spectrum sensing to achieve high network utilization by secondary users. Current optimization approaches to spectrum se...
Ling Luo, Chittabrata Ghosh, Sumit Roy
TSP
2010
13 years 3 months ago
Sequential and cooperative sensing for multi-channel cognitive radios
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
Seung-Jun Kim, Georgios B. Giannakis