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

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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Veröffentlicht in:IEEE communications letters 2013-03, Vol.17 (3), p.565-568
Hauptverfasser: ZHIPING SHI, CHAN TEH, Kah, HUNG LI, Kwok
Format: Artikel
Sprache:eng
Schlagworte:
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
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Beschreibung
Zusammenfassung: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.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2013.012313.122442