Wireless Information and Power Transfer in Cooperative Networks With Spatially Random Relays

By Zhiguo Ding, Ioannis Krikidis, Bayan S. Sharif, H. Vincent Poor. IEEE Transactions on Wireless Communications, 2014

332 citations recorded by the source corpus.

In this paper, the application of wireless information and power transfer to cooperative networks is investigated, where the relays in the network are randomly located and based on the decode-forward strategy. For the scenario with one source-destination pair, three different strategies for using the available relays are studied, and their impact on the outage probability and diversity gain is characterized by applying stochastic geometry. By using the assumptions that the path loss exponent is two and that the relay-destination distances are much larger than the source-relay distances, closed form analytical results can be developed to demonstrate that the use of energy harvesting relays can achieve the same diversity gain as the case with conventional self-powered relays. For the scenario with multiple sources, the relays can be viewed as a type of scarce resource, where the sources compete with each other to get help from the relays. Such a competition is modeled as a coalition formation game, and two distributed game theoretic algorithms are developed based on different payoff functions. Simulation results are provided to confirm the accuracy of the developed analytical results and facilitate a better performance comparison.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/4a1279a367db071595eca521d049fcba71e990f3

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Citations in the corpus

Full-Duplex Wireless-Powered Relay With Self-Energy Recycling (2014, background): “Existing studies on WPR mostly consider half-duplex relaying and adopt either time switchingbased relaying (TSR) [3]–[5] or power splitting-based relaying (PSR) protocols [5], [6], by exploiting the time-switching and power-splitting receiver architectures for SWIPT proposed in [7].”
Wireless Information and Power Transfer With Full Duplex Relaying (2014, background): “More recently, the performance of energy harvesting cooperative networks with randomly distributed users was studied in [17–19].”
Cooperative Non-Orthogonal Multiple Access in 5G Systems (2014, background): “One promising future direction is to apply game theoretic algorithms for opportunistic user pairing/grouping, wher e users can form coalitions in a distributed manner [7].”
Harvest-Then-Cooperate: Wireless-Powered Cooperative Communications (2014, background): “In this paper, even though we do not consider the spatial randomness of node locations [33], [34], we follow some recent papers in the literature (e.”
Fundamentals of Wireless Information and Power Transfer: From RF Energy Harvester Models to Signal and System Designs (2018, background): “…SWIPT systems are also investigated in multi-user cooperative communications under various different setups, such as with TS-and/or PS-based half-duplex relaying [35], [36], [125], as well as full-duplex relays with simultaneous information transmission and energy harvesting [126], [127].”
Physical-Layer Security of 5G Wireless Networks for IoT: Challenges and Opportunities (2019, background): “It becomes more attractive in IoT applications, notably in wireless body area networks (WBANs) and wireless sensor networks (WSNs), where it is inconvenient to replace or recharge the battery-limited devices [73].”
Cooperative Non-orthogonal Multiple Access With Simultaneous Wireless Information and Power Transfer (2015, methodology): “operative NOMA system consists of two phases, detailed in the following. In this work, without loss of generality, it is assumed that the two phases have the same transmission periods, the same as in [8,10,11]. It is worth pointing out that dynamic time allocation for the two phases may further impr”