Performance Analysis of SWIPT Relay Systems Over Nakagami-m Fading Channels with Non-linear Energy Harvester and Hybrid Protocol

Ghotbi-Maleki, Mahdi; Hoseini, Ali Mohamad Doost; Masjedi, Maryam

doi:10.1109/icee.2018.8472559

Cited by 7 publications

(21 citation statements)

References 12 publications

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“…However, as mentioned before, only few works (e.g., [16,17]) consider the hybrid protocol for the receiver and they use the linear EH model in the SWIPT systems. Although the hybrid scheme is considered for the SWIPT AF systems with the nonlinear EH model in [24], the outage performance analysis within is complex due to its complicated and unclosed-form expressions of the outage probability.…”

Section: Motivation and Contributionsmentioning

confidence: 99%

Performance Analysis for SWIPT Cooperative DF Communication Systems with Hybrid Receiver and Non-Linear Energy Harvesting Model

Yuan

Liu

Feng

2020

Sensors

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In this paper, we study the outage and throughput performance for the simultaneous wireless information and power transfer (SWIPT) cooperative decode-and-forward (DF) communication systems. The hybrid receiver that uses both time switching (TS) and power splitting (PS) methods for energy harvesting (EH) and information decoding (ID), and the piece-wise linear EH model that captures the non-linear input-output characteristic of the EH circuit, are considered. We present exact analytical expressions of the outage probability (OP) and throughput, which are expressed as single definite integral on finite interval and can be easily evaluated, for the systems in Rayleigh fading channel. For further simplicity of calculation, we derive novel and closed-form approximate expressions of the OP and throughput. The impact of different system parameters on the system performance is investigated. Numerical results show the high accuracy of the proposed closed-form approximate expressions especially in the region of higher signal-to-noise ratio (SNR). It is also shown that the system performance is greatly overestimated when the ideal linear EH model is used instead of the practical non-linear EH model. A different result to the non-hybrid receiver with both linear EH model and non-linear EH model that there exists an optimal location to minimize the OP for the hybrid receiving relay node with non-linear EH model is also demonstrated.

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Section: Motivation and Contributionsmentioning

confidence: 99%

Performance Analysis for SWIPT Cooperative DF Communication Systems with Hybrid Receiver and Non-Linear Energy Harvesting Model

Yuan

Liu

Feng

2020

Sensors

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“…On the other hand, since Nakagami-m fading channel is more general and practical compared with Rayleigh and Gaussian channel fading models [38], some recent studies on SWIPT and WPCN began to discuss the system outage performance in Nakagami-m fading, see e.g., [39][40][41]. In [39], the system outage capacity was studied for wireless-powered DF relaying networks in Nakagami-m fading with the PW nonlinear EH model.…”

Section: Related Workmentioning

confidence: 99%

“…Secondly, most existing works, see e.g., [35][36][37]41], investigated the system outage and throughput performance over Gaussian channel, Rayleigh fading channel, and Rician fading channel. Since Nakagami-m fading is a generalized model, which is more accuracy and flexibility in matching the various empirically obtained measurement data than other models [38][39][40][41], we use it in our work.…”

Section: Motivationmentioning

confidence: 99%

“…In [37], the PW nonlinear EH model was employed to study the secure outage probability performance for wireless-powered multi-antenna DF relaying system in independent Rayleigh fading. Yet, in these works, only Rayleigh and Gaussian fading channels were investigated rather than Nakagami-m fading channel.On the other hand, since Nakagami-m fading channel is more general and practical compared with Rayleigh and Gaussian channel fading models [38], some recent studies on SWIPT and WPCN began to discuss the system outage performance in Nakagami-m fading, see e.g., [39][40][41]. In [39], the system outage capacity was studied for wireless-powered DF relaying networks in Nakagami-m fading with the PW nonlinear EH model.…”

mentioning

confidence: 99%

“…In [39], the system outage capacity was studied for wireless-powered DF relaying networks in Nakagami-m fading with the PW nonlinear EH model. In [40], the system outage probability and throughput were…”

mentioning

confidence: 99%

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Outage and Throughput of WPCN-SWIPT Networks with Nonlinear EH Model in Nakagami-m Fading

et al. 2019

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This paper analyzes outage probability and reliable throughput performance of a multi-user wireless-powered communication network-simultaneous wireless information and power transfer (WPCN-SWIPT) network with the logistic function-based (LG) nonlinear energy-harvesting (EH) model in Nakagami-m fading. Power-splitting (PS) receiver architecture is considered. The closed-form expressions of the system outage probability and the system reliable throughput are derived, and then the corresponding asymptotic expressions are also provided to achieve simpler calculation in the high-transmit power scenarios. Simulation results demonstrate the correctness of our derived analytical results and show that the systems under the LG nonlinear and linear EH models have very different performance behaviors. Moreover, since the LG nonlinear EH model is closer to the features of practical EH circuit than the linear one, using the LG nonlinear EH model can avoid the false output results of the system performance evaluation.

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Age of information and energy efficiency of amplify‐and‐forward relay‐assisted Internet of Things with nonlinear energy harvesting and imperfect channel state information over Nakagami‐ fading channels

Jia

Guo

Hao

et al. 2022

Trans Emerging Tel Tech

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The emergence of the fifth generation of communication networks (5G) has paved the way for the fast development of Internet of Things (IoT) as well as many real‐time and mission‐critical applications. Because the status update required to be as timely as possible, a new metric termed as age of information (AoI) was born with the ability of capturing the timeliness. However, in practical implementation the sensor is energy constrained and transmits very low‐power signals, which yield high AoI so that the received status update can be stale or even outdated. To overcome this problem, this work proposes an IoT system model by integrating energy harvesting (EH), amplify‐and‐forward (AF) relay cooperation, and short packet communication (SPC) techniques. In the proposed scheme, the relay that is connected to fixed power grid, transfers energy radio frequency signals to charge the sensor and assists forwarding status update by using time switching scheme. The employment of SPC overcomes the freshness loss caused by relay cooperation and EH. Then, this work investigates the AoI and energy efficiency of the proposed scheme under finite block length communications over Nakagami‐m$$ m $$ fading channels by specially considering channel state information (CSI) and nonlinear EH model. Under these practical constraints, the tractable AF relay transmission model and the end‐to‐end approximated signal‐to‐noise ratio are found. The end‐to‐end block error probability of finite block length transmission is derived, too. Third, under the simultaneous consideration of nonlinear EH and outdated CSI, the statistical descriptions of the time duration for the sensor fully charging its battery are derived as well as the ones of the time intervals of update packet delivery. As a result, the average AoI is achieved with closed‐form expression and the tradeoff model of AoI to energy efficiency is established by simultaneously exploiting outdated CSIs and nonlinearity of EH circuit. The presented numerical analysis exploits the impact of the outdated CSIs and nonlinear EH model and gives the insights of such model.

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Performance Analysis of SWIPT Relay Systems Over Nakagami-m Fading Channels with Non-linear Energy Harvester and Hybrid Protocol

Cited by 7 publications

References 12 publications

Performance Analysis for SWIPT Cooperative DF Communication Systems with Hybrid Receiver and Non-Linear Energy Harvesting Model

Performance Analysis for SWIPT Cooperative DF Communication Systems with Hybrid Receiver and Non-Linear Energy Harvesting Model

Outage and Throughput of WPCN-SWIPT Networks with Nonlinear EH Model in Nakagami-m Fading

Age of information and energy efficiency of amplify‐and‐forward relay‐assisted Internet of Things with nonlinear energy harvesting and imperfect channel state information over Nakagami‐ fading channels

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