Optimization of Cooperative Sensing in Cognitive Radio Networks: A Sensing-Throughput Tradeoff View
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- 21 July 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Vehicular Technology
- Vol. 58 (9), 5294-5299
- https://doi.org/10.1109/tvt.2009.2028030
Abstract
In cognitive radio networks, the performance of the spectrum sensing depends on the sensing time and the fusion scheme that are used when cooperative sensing is applied. In this paper, we consider the case where the secondary users cooperatively sense a channel using the k -out-of-N fusion rule to determine the presence of the primary user. A sensing-throughput tradeoff problem under a cooperative sensing scenario is formulated to find a pair of sensing time and k value that maximize the secondary users' throughput subject to sufficient protection that is provided to the primary user. An iterative algorithm is proposed to obtain the optimal values for these two parameters. Computer simulations show that significant improvement in the throughput of the secondary users is achieved when the parameters for the fusion scheme and the sensing time are jointly optimized.Keywords
This publication has 15 references indexed in Scilit:
- Optimal spectrum sensing framework for cognitive radio networksIEEE Transactions on Wireless Communications, 2008
- Sensing-Throughput Tradeoff for Cognitive Radio NetworksIEEE Transactions on Wireless Communications, 2008
- Efficient Discovery of Spectrum Opportunities with MAC-Layer Sensing in Cognitive Radio NetworksIEEE Transactions on Mobile Computing, 2008
- Optimal Linear Cooperation for Spectrum Sensing in Cognitive Radio NetworksIEEE Journal of Selected Topics in Signal Processing, 2008
- Cooperative Spectrum Sensing Optimization in Cognitive Radio NetworksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Cooperative Spectrum Sensing in Cognitive Radio, Part I: Two User NetworksIEEE Transactions on Wireless Communications, 2007
- Cooperative Sensing among Cognitive RadiosPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Implementation issues in spectrum sensing for cognitive radiosPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Distributed Detection and Data FusionPublished by Springer Science and Business Media LLC ,1997
- Optimal Data Fusion in Multiple Sensor Detection SystemsIEEE Transactions on Aerospace and Electronic Systems, 1986