Harvest-Then-Cooperate: Wireless-Powered Cooperative Communications
By He Henry Chen, Yonghui Li, João Luiz Rebelatto, Bartolomeu Ferreira Uchôa Filho, Branka Vucetic. IEEE Transactions on Signal Processing, 2014
415 citations recorded by the source corpus.
In this paper, we consider a wireless-powered cooperative communication network consisting of one hybrid access-point (AP), one source, and one relay. In contrast to conventional cooperative networks, the source and relay in the considered network have no embedded energy supply. They need to rely on the energy harvested from the signals broadcasted by the AP for their cooperative information transmission. Based on this three-node reference model, we propose a harvest-then-cooperate (HTC) protocol, in which the source and relay harvest energy from the AP in the downlink and work cooperatively in the uplink for the source's information transmission. Considering a delay-limited transmission mode, the approximate closed-form expression for the average throughput of the proposed protocol is derived over Rayleigh fading channels. Subsequently, this analysis is extended to the multi-relay scenario, where the approximate throughput of the HTC protocol with two popular relay selection schemes is derived. The asymptotic analyses for the throughput performance of the considered schemes at high signal-to-noise radio are also provided. All theoretical results are validated by numerical simulations. The impacts of the system parameters, such as time allocation, relay number, and relay position, on the throughput performance are extensively investigated.
Subfields: Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/3a022540e2af4dabad6d974d94ee7503e7ca2663
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In Electrical and Electronic Engineering
Citations in the corpus
- Wireless Charging Technologies: Fundamentals, Standards, and Network Applications (2015, background): “The studies in [286] and [287] analyzed different cooperative strategies for the relay to improve network performance.”
- Throughput Maximization for UAV-Enabled Wireless Powered Communication Networks (2018, background): “To overcome the above issues, various approaches have been proposed in the literature, such as adaptive time and power allocation [8], multi-antenna beamforming [11]–[15], and user cooperation [16], [17].”
- Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges (2018, methodology): “performance measuring parameters such as throughput and energy consumption are analysed for a three node scheme in [115] and for multiple access relay scheme”
- Wireless Networks With RF Energy Harvesting: A Contemporary Survey (2014, background): “The authors in [211] devise a harvest-then-cooperate protocol, which schedules the source and relay to harvest energy first and then cooperatively performs uplink information transmission.”
- Energy-Efficient Base-Stations Sleep-Mode Techniques in Green Cellular Networks: A Survey (2015, background): “To overcome this possible shortage, energy harvesting technique is proposed to exploit renewable energy sources [68], [130].”