Cognitive Radio Networks with Energy Harvesting

• Published in: IEEE transactions on wireless communications Vol. 12; no. 3; pp. 1386 - 1397
• Main Authors: Park, Sungsoo, Kim, Hyungjong, Hong, Daesik
• 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: Applied sciences; Batteries; Cognitive radio; Cognitive radio network; energy causality; Energy consumption; Energy harvesting; Energy use; Exact sciences and technology; Information, signal and communications theory; Mathematical analysis; Networks; opportunistic spectrum access; Optimization; Radio transmitters; Radiocommunication specific techniques; Radiocommunications; renewable energy; Sensors; Signal and communications theory; Signal representation. Spectral analysis; Signal, noise; Spectra; Studies; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Thresholds; Throughput; Transmission and modulation (techniques and equipments); Transmitters. Receivers; Performance evaluation; Energy spectrum; Threshold detection; Measurement sensor; Information rate; Transmitter; Cognitive radio network; energy harvesting; Secondary cell; Optimal detection; Information transmission; opportunistic spectrum access; renewable energy; Idling; Energetic efficiency; Spectrum analysis; Analytical method; Electric power consumption; Numerical simulation; energy causality; Causality; Signal analysis; Radio communication; Software radio

We consider a cognitive radio network with an energy-harvesting secondary transmitter to improve both energy efficiency and spectral efficiency. The goal of this paper is to determine an optimal spectrum sensing policy that maximizes the expected total throughput subject to an energy causality const...