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JSAC
2011
215views more  JSAC 2011»
13 years 6 days ago
Opportunistic Spectrum Sharing Schemes for CDMA-Based Uplink MAC in Cognitive Radio Networks
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
Xi Zhang, Hang Su
ICASSP
2011
IEEE
12 years 9 months ago
Joint bandwidth and power allocation in cognitive radio networks under fading channels
A problem of joint optimal bandwidth and power allocation in cognitive networks under fading channels is considered. It is assumed that multiple secondary users (SUs) share the sp...
Xiaowen Gong, Sergiy A. Vorobyov, Chintha Tellambu...
ADHOCNETS
2009
Springer
13 years 12 months ago
Distributed Spectrum Sharing for Video Streaming in Cognitive Radio Ad Hoc Networks
A distributed joint routing and spectrum sharing algorithm for video streaming applications over cognitive radio ad hoc networks is proposed in this article. The proposed cross-lay...
Lei Ding, Scott Pudlewski, Tommaso Melodia, Stella...
TWC
2008
159views more  TWC 2008»
13 years 5 months ago
Resource allocation for spectrum underlay in cognitive radio networks
A resource allocation framework is presented for spectrum underlay in cognitive radio networks. We consider both interference constraints for primary users and quality of service (...
Long Bao Le, Ekram Hossain
GLOBECOM
2009
IEEE
13 years 9 months ago
Optimum Allocation of Energy and Spectrum in Power-Controlled Wireless Networks with QoS Constraints
An important performance measure in wireless networks is the manner in which the network can distributively manage its limited energy and spectrum resources, while assuring certain...
Stepán Kucera, Ludek Kucera, Bing Zhang