Performance limits of cooperative energy detection in fading environments
Article No.: 18, Pages 1 - 5
Abstract
In this paper, the performance of energy detector-based spectrum sensor networks is examined under the constraints of the IEEE 802.22 draft specification. Additive white Gaussian noise (AWGN) channels are first considered, and a closed form solution for sample complexity is derived for networks of any size. Rayleigh, Nakagami and Rice fading channel models are also examined, with numerical results demonstrating the effect of these models on the required sample complexity for varying numbers of cooperating nodes.
Based on these results, the relationship between the sample complexity for AWGN, Rayleigh and Nakagami channels is examined. Through data fitting, an approximate model is derived, allowing the sample complexity for Rayleigh and Nakagami channels to be computed easily. The model is shown to be accurate across a range of practical values.
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- Performance limits of cooperative energy detection in fading environments
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Published In
October 2011
372 pages
ISBN:9781450309127
DOI:10.1145/2093256
- Conference Chair:
- Simone Frattasi,
- Program Chair:
- Nicola Marchetti
Copyright © 2011 ACM.
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Sponsors
- Universitat Pompeu Fabra
- IEEE
- Technical University of Catalonia Spain: Technical University of Catalonia (UPC), Spain
- River Publishers: River Publishers
- CTTC: Technological Center for Telecommunications of Catalonia
- CTIF: Kyranova Ltd, Center for TeleInFrastruktur
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Association for Computing Machinery
New York, NY, United States
Publication History
Published: 26 October 2011
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CogART '11
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- Technical University of Catalonia Spain
- River Publishers
- CTTC
- CTIF
CogART '11: International Conference on Cognitive Radio and Advanced Spectrum Management
October 26 - 29, 2011
Barcelona, Spain
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