Wireless Energy Harvesting and Spectrum Sharing in Cognitive Radio

S. Ali Mousavifar, Yuanwei Liu, Cyril Leung, Maged Elkashlan, Trung Q. Duong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

42 Citations (Scopus)


A wireless energy harvesting protocol is proposed for a decode-and-forward relay- assisted secondary user (SU) network in a cognitive spectrum sharing paradigm. An expression for the outage probability of the relay-assisted cognitive network is derived subject to the following power constraints: 1) the maximum power that the source and the relay in the SU network can transmit from the harvested energy, 2) the peak interference power from the source and the relay in the SU network at the primary user (PU) network, and 3) the interference power of the PU network at the relay-assisted SU network. The results show that as the energy harvesting conversion efficiency improves, the relay- assisted network with the proposed wireless energy harvesting protocol can operate with outage probabilities below 20% for some practical applications.
Original languageEnglish
Title of host publicationIEEE 80th Vehicular Technology Conference (VTC 2014-Fall)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Print)9781479944491
Publication statusPublished - Sep 2014


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