Energy harvesting and information processing in two‐way multiplicative relay networks

Shah, Syed Tariq; Choi, Kae Won; Hasan, Syed Faraz; Chung, Min Young

doi:10.1049/el.2015.3682

Cited by 41 publications

(40 citation statements)

References 6 publications

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“…. Substituting (10), (11), (12) and (18) (or (19), or (20), or (21), or 0) into (8) and (7), P S out is determined. The system outage capacity τ S out is given as…”

Section: B System Outage Probabilitymentioning

confidence: 99%

On the Outage Performance of SWIPT-Based Three-Step Two-Way DF Relay Networks

Shi

Chu

et al. 2019

IEEE Trans. Veh. Technol.

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In this paper, we study the outage performance of simultaneous wireless information and power transfer (SWIPT) based three-step two-way decode-and-forward (DF) relay networks, where both power-splitting (PS) and "harvest-thenforward" are employed. In particular, we derive the expressions of terminal-to-terminal (T2T) and system outage probabilities based on a Gaussian-Chebyshev quadrature approximation, and obtain the T2T and system outage capacities. The effects of various system parameters, e.g., the static power allocation ratio at the relay, symmetric PS, as well as asymmetric PS, on the outage performance of the investigated network are examined. It is shown that our derived expression for T2T outage capacity is more accurate than existing analytical results, and that the asymmetric PS achieves a higher system outage capacity than the symmetric one when the channels between the relay node and the terminal nodes have different statistic gains.Index Terms-Outage performance, SWIPT based three-step two-way DF relay, power-splitting.

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“…. Substituting (10), (11), (12) and (18) (or (19), or (20), or (21), or 0) into (8) and (7), P S out is determined. The system outage capacity τ S out is given as…”

Section: B System Outage Probabilitymentioning

confidence: 99%

On the Outage Performance of SWIPT-Based Three-Step Two-Way DF Relay Networks

Shi

Chu

et al. 2019

IEEE Trans. Veh. Technol.

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“…Note that no power has been allocated to the channels whose index is higher than * . On the other hand, power levels for channels whose index is lower than * are determined according to (23), where * , is added with the difference of step depth of corresponding step and * th step.…”

Section: Geometric Water-filling Based Optimal Transmit Powermentioning

confidence: 99%

“…A two-way relay network based on the denoise-andforward relay with noncoherent differential binary phaseshift keying modulation has been studied in [22], while an energy harvesting and information processing network based on two-way multiplicative relay using PSR protocol was investigated in [23]. The numerical results showed that the proposed scheme outperforms the amplify-and-forward EH relaying technique.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Wireless Energy Harvesting and Optimal Distribution in Multipair DF Relay Network with Nonlinear Energy Conversion Model

Shah

Costa

Choi

et al. 2018

Wireless Communications and Mobile Computing

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Wireless energy harvesting has emerged as an efficient solution to prolong the lifetime of wireless networks composed of energyconstrained nodes. In this paper, we consider a multipoint-to-multipoint relay network, where multiple source nodes communicate with their respective destination nodes via intermediate energy-constrained decode-and-forward (DF) relay. The performance of two different transmission modes, namely, delay tolerant and delay nontolerant, is studied. Based on power-splitting relaying protocol (PSR), optimal energy harvesting and distribution schemes for both transmission modes are provided. In addition, for more realistic and practical analysis, we consider a nonlinear energy conversion model for energy harvesting at the relay node. Our numerical results provide useful insights into different system parameters of a nonlinear energy harvesting-based multipair DF relay network.

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“…Based on the TS receiver, three wireless power transfer policies have been proposed to maximize the capacity [9]. A static equal PS scheme has been developed to maximize the overall outage capacity for three-step AF TWRNs [10], where the PS ratio is determined by the statistical channel state information (CSI). The outage capacity can be improved by adopting a dynamic PS scheme, because the PS ratio can be adaptive to the instantaneous CSI instead of to the statistical CSI.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Power-Splitting Based Two-Way DF Relaying with Non-Linear Energy Harvesting

Shi

Cheng²,

et al. 2018

2018 IEEE Global Communications Conference (GLOBECOM)

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Simultaneous wireless information and power transfer (SWIPT) has been recognized as a promising approach to improving the performance of energy constrained networks. In this paper, we investigate a SWIPT based three-step two-way decode-and-forward (DF) relay network with a non-linear energy harvester equipped at the relay. As most existing works require instantaneous channel state information (CSI) while CSI is not fully utilized when designing power splitting (PS) schemes, there exists an opportunity for enhancement by exploiting CSI for PS design. To this end, we propose a novel heterogeneous PS scheme, where the PS ratios are dynamically changed according to instantaneous channel gains. In particular, we derive the closed-form expressions of the optimal PS ratios to maximize the capacity of the investigated network and analyze the outage probability with the optimal dynamic PS ratios based on the non-linear energy harvesting (EH) model. The results provide valuable insights into the effect of various system parameters, such as transmit power of the source, source transmission rate, and source to relay distance on the performance of the investigated network. The results show that our proposed PS scheme outperforms the existing schemes.Index Terms-Simultaneous wireless information and power transfer, two-way decode-and-forward relay, dynamic heterogeneous power splitting, non-linear energy harvesting.

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Energy harvesting and information processing in two‐way multiplicative relay networks

Cited by 41 publications

References 6 publications

On the Outage Performance of SWIPT-Based Three-Step Two-Way DF Relay Networks

On the Outage Performance of SWIPT-Based Three-Step Two-Way DF Relay Networks

Dynamic Wireless Energy Harvesting and Optimal Distribution in Multipair DF Relay Network with Nonlinear Energy Conversion Model

Heterogeneous Power-Splitting Based Two-Way DF Relaying with Non-Linear Energy Harvesting

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