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GLOBECOM
2008
IEEE
14 years 10 months ago
Power Allocation for Cognitive Radios Based on Primary User Activity in an OFDM System
Efficient and reliable power allocation algorithm in Cognitive radio (CR) networks is a challenging problem. Traditional water-filling algorithm is inefficient for CR networks due ...
Ziaul Hasan, Ekram Hossain, Charles L. Despins, Vi...
IWCMC
2009
ACM
15 years 4 months ago
A cognitive radio system for home theatre "5+1 audio" surround applications
This paper presents the application of cognitive algorithm for a stream diffusion in home theatre “5+1 audio” surround applications. We develop a wavelet-based method to effic...
Valeria Orani, Vlad Popescu, Maurizio Murroni
ICCCN
2008
IEEE
15 years 4 months ago
Multi-Hop RFID Wake-Up Radio: Design, Evaluation and Energy Tradeoffs
Abstract—Energy efficiency is a central challenge in batteryoperated sensor networks. Current energy-efficient mechanisms employ either duty cycling, which reduces idle listeni...
Raja Jurdak, Antonio G. Ruzzelli, Gregory M. P. O'...
ICC
2008
IEEE
203views Communications» more  ICC 2008»
15 years 4 months ago
Spectrum Leasing via Distributed Cooperation in Cognitive Radio
Abstract— The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resour...
Igor Stanojev, Osvaldo Simeone, Yeheskel Bar-Ness,...
ICDCS
2009
IEEE
15 years 7 months ago
Down the Block and Around the Corner The Impact of Radio Propagation on Inter-vehicle Wireless Communication
Vehicular networks are emerging as a new distributed system environment with myriad possible applications. Most studies on vehicular networks are carried out via simulation, given...
John S. Otto, Fabián E. Bustamante, Randall...