Energy-Efficient Joint Design of Sensing and Transmission Durations for Protection of Primary User in Cognitive Radio Systems

In this paper, we consider a joint design of energy-efficient sensing and transmission durations for a cognitive radio (CR) system in which the primary user (PU) is protected. The design problem is formulated as a function of two variables, which are sensing and transmission durations, subject to th...

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Published in	IEEE communications letters Vol. 17; no. 3; pp. 565 - 568
Main Authors	Shi, Zhiping, Teh, Kah Chan, Li, Kwok Hung
Format	Journal Article
Language	English
Published	New York, NY IEEE 01.03.2013 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects	Algorithms Applied sciences Cognitive radio Computational efficiency Computing time Design engineering Detection energy efficiency Exact sciences and technology Interference Iterative methods Joints Linear programming Optimization Plutonium Radiocommunication specific techniques Radiocommunications sensing duration Sensors Telecommunications Telecommunications and information theory transmission duration Performance evaluation Optimal algorithm sensing duration Cognitive radio Cognitive system Joint detection Energetic efficiency Optimal solution energy efficiency Electric power consumption Minimum energy interference Low-power electronics transmission duration Software radio
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Abstract	In this paper, we consider a joint design of energy-efficient sensing and transmission durations for a cognitive radio (CR) system in which the primary user (PU) is protected. The design problem is formulated as a function of two variables, which are sensing and transmission durations, subject to the interference to the PU. The optimal solutions are analyzed and a sub-optimal algorithm that maximizes the energy efficiency for the CR system is presented. The performance of the proposed energy-efficient design for the CR system is also evaluated.
AbstractList	In this paper, we consider a joint design of energy-efficient sensing and transmission durations for a cognitive radio (CR) system in which the primary user (PU) is protected. The design problem is formulated as a function of two variables, which are sensing and transmission durations, subject to the interference to the PU. The optimal solutions are analyzed and a sub-optimal algorithm that maximizes the energy efficiency for the CR system is presented. The performance of the proposed energy-efficient design for the CR system is also evaluated.
Author	Kwok Hung Li Zhiping Shi Kah Chan Teh
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SubjectTerms	Algorithms Applied sciences Cognitive radio Computational efficiency Computing time Design engineering Detection energy efficiency Exact sciences and technology Interference Iterative methods Joints Linear programming Optimization Plutonium Radiocommunication specific techniques Radiocommunications sensing duration Sensors Telecommunications Telecommunications and information theory transmission duration
Title	Energy-Efficient Joint Design of Sensing and Transmission Durations for Protection of Primary User in Cognitive Radio Systems
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