Relaying Protocols for Wireless Energy Harvesting and Information Processing

By Ali Arshad Nasir, Xiangyun Zhou, Salman Durrani, Rodney A. Kennedy. IEEE Transactions on Wireless Communications, 2012

1,814 citations recorded by the source corpus.

An emerging solution for prolonging the lifetime of energy constrained relay nodes in wireless networks is to avail the ambient radio-frequency (RF) signal and to simultaneously harvest energy and process information. In this paper, an amplify-and-forward (AF) relaying network is considered, where an energy constrained relay node harvests energy from the received RF signal and uses that harvested energy to forward the source information to the destination. Based on the time switching and power splitting receiver architectures, two relaying protocols, namely, i) time switching-based relaying (TSR) protocol and ii) power splitting-based relaying (PSR) protocol are proposed to enable energy harvesting and information processing at the relay. In order to determine the throughput, analytical expressions for the outage probability and the ergodic capacity are derived for delay-limited and delay-tolerant transmission modes, respectively. The numerical analysis provides practical insights into the effect of various system parameters, such as energy harvesting time, power splitting ratio, source transmission rate, source to relay distance, noise power, and energy harvesting efficiency, on the performance of wireless energy harvesting and information processing using AF relay nodes. In particular, the TSR protocol outperforms the PSR protocol in terms of throughput at relatively low signal-to-noise-ratios and high transmission rates.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/b0a372edf386bfd827b66f95540fb5513b038813

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Citations in the corpus

A Survey of Device-to-Device Communications: Research Issues and Challenges (2018, neutral): “This is why this technique has recently been investigated in mobile networks [261], cognitive networks [262], [263] and relay assisted networks [264], [265].”
Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges (2018, background): “4) Interference Aided Harvesting: An interference aided RF EH operation is introduced in [119] for cooper-”
Full-Duplex Wireless-Powered Relay With Self-Energy Recycling (2014, methodology): “Time-switching based wireless-powered relaying [5].”
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Wireless Charging Technologies: Fundamentals, Standards, and Network Applications (2015, background): “, point-to-point channels [250]–[253], broadcast channels [254]–[256], relay channels [257]–[260], OFDMA channels [261], multi-antenna channels with additive white Gaussian noise (AWGN) or fading AWGN [262]–[265], opportunistic channels [266]–[269] and wiretap channels [270]–[273].”
Optimal Resource Allocation in Full-Duplex Wireless-Powered Communication Network (2014, background): “, the point-to-point additive white Gaussian noise (AWGN) channel [3], [4], the fading AWGN channel [5], [6] the multi-antenna channel [7]–[9], the relay channel [10], [11], and the multi-carrier based broadcast channel [12]–[14].”
Harvest-Then-Cooperate: Wireless-Powered Cooperative Communications (2014, background): “The remaining fraction 1 − τ of the block is further divided into two time slots with the equal length of (1 − τ ) T/ 2 for cooperative information transmission in the UL.”
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Advances in Energy Harvesting Communications: Past, Present, and Future Challenges (2016, background): “In [71], two relaying protocols of time sharing and power splitting are considered for two-hop”
Fundamentals of Wireless Information and Power Transfer: From RF Energy Harvester Models to Signal and System Designs (2018, background): “Since then, SWIPT has attracted signiﬁcant interests in the communication literature with works covering a wide range of topics, among others MIMO broad-casting [25], [26], architecture [27], [28], interference channel [29]–[31], broadband system [32]–[34], relaying [35], [36].”
Wireless Information and Power Transfer in Cooperative Networks With Spatially Random Relays (2014, methodology): “trical, Electronic, and Computer Engineering, Newcastle University, NE1 7RU, UK. B. Sharif is with College of Engineering, Khalifa University, Abu Dhabi, UAE. and information decoding separately [3], [4]. Particularly the receiver either switches on two circuits at different time, a strategy called ”
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Cooperative Non-orthogonal Multiple Access With Simultaneous Wireless Information and Power Transfer (2015, methodology): “In this work, without loss of generality, it is assumed that the two phases have the same transmission periods, the same as in [9], [12] and [13].”
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Survey on 6G Frontiers: Trends, Applications, Requirements, Technologies and Future Research (2021, background): “In this context, much of the excitement revolves around the idea that the radio signals can simultaneously transfer energy as well as information [266].”