Wireless Energy Harvesting in a Cognitive Relay Network
Yuanwei Liu, S. Ali Mousavifar, Yansha Deng, Cyril Leung, Maged, Elkashlan

TL;DR
This paper proposes a novel wireless energy harvesting protocol for cognitive relay networks, deriving exact and asymptotic expressions for outage probability and throughput, revealing the impact of system parameters and primary user placement.
Contribution
It introduces a new energy harvesting protocol for cognitive relays and provides comprehensive analytical expressions for performance metrics under various constraints.
Findings
Outage probability improves with primary transmitters near secondary source.
Large number of primary transmitters increases interference, reducing benefits of energy harvesting.
Optimal placement of primary transmitters enhances secondary network performance.
Abstract
Wireless energy harvesting is regarded as a promising energy supply alternative for energy-constrained wireless networks. In this paper, a new wireless energy harvesting protocol is proposed for an underlay cognitive relay network with multiple primary user (PU) transceivers. In this protocol, the secondary nodes can harvest energy from the primary network (PN) while sharing the licensed spectrum of the PN. In order to assess the impact of different system parameters on the proposed network, we first derive an exact expression for the outage probability for the secondary network (SN) subject to three important power constraints: 1) the maximum transmit power at the secondary source (SS) and at the secondary relay (SR), 2) the peak interference power permitted at each PU receiver, and 3) the interference power from each PU transmitter to the SR and to the secondary destination (SD). To…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsEnergy Harvesting in Wireless Networks · Advanced MIMO Systems Optimization · Full-Duplex Wireless Communications
