Energy harvesting half-duplex AF power splitting protocol relay network over rician channel in case of maximizing capacity

In this paper, we introduce a half-duplex (HD) energy harvesting (EH) relay network over the different fading environment with the effect of hardware impairment (HI). The model system was investigated with the amplify-and-forward (AF) and the power splitting (PS) protocols. The system performance analysis in term of the outage probability (OP), achievable throughput (AT), and bit error rate (BER) were demonstrated with the closed-form expressions. In addition, the power splitting (PS) factor was investigated. We verified the analytical analysis by Monte Carlo simulation with all primary parameters. From the results, we can state that the analytical and simulation results match well with each other.

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Outage-Based Resource Allocation for DF Two-Way Relay Networks with Energy Harvesting

Sensors ◽

10.3390/s18113946 ◽

2018 ◽

Vol 18 (11) ◽

pp. 3946 ◽

Cited By ~ 1

Author(s):

Chunling Peng ◽

Fangwei Li ◽

Huaping Liu ◽

Guozhong Wang

Keyword(s):

Resource Allocation ◽

Energy Harvesting ◽

Outage Probability ◽

Relay Network ◽

Total Power ◽

Power Splitting ◽

Decode And Forward ◽

Resource Allocation Algorithm ◽

Joint Resource Allocation ◽

System Outage Probability

A joint resource allocation algorithm to minimize the system outage probability is proposed for a decode-and-forward (DF) two-way relay network with simultaneous wireless information and power transfer (SWIPT) under a total power constraint. In this network, the two sources nodes exchange information with the help of a passive relay, which is assumed to help the two source nodes’ communication without consuming its own energy by exploiting an energy-harvesting protocol, the power splitting (PS) protocol. An optimization framework to jointly optimize power allocation (PA) at the source nodes and PS at the relay is developed. Since the formulated joint optimization problem is non-convex, the solution is developed in two steps. First, the conditionally optimal PS ratio at the relay node for a given PA ratio is explored; then, the closed-form of the optimal PA in the sense of minimizing the system outage probability with instantaneous channel state information (CSI) is derived. Analysis shows that the optimal design depends on the channel condition and the rate threshold. Simulation results are obtained to validate the analytical results. Comparison with three existing schemes shows that the proposed optimized scheme has the minimum system outage probability.

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Dynamic Power Splitting Strategy for SWIPT Based Two-Way Multiplicative AF Relay Networks with Nonlinear Energy Harvesting Model

Wireless Communications and Mobile Computing ◽

10.1155/2018/1802063 ◽

2018 ◽

Vol 2018 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Tianci Wang ◽

Guangyue Lu ◽

Yinghui Ye ◽

Yuan Ren

Keyword(s):

Energy Harvesting ◽

Iterative Method ◽

Relay Network ◽

Power Splitting ◽

Amplify And Forward ◽

Channel State ◽

Dynamic Power ◽

Energy Constrained ◽

Af Relay ◽

Nonlinear Energy

This paper investigates an energy-constrained two-way multiplicative amplify-and-forward (AF) relay network, where a practical nonlinear energy harvesting (NLEH) model is equipped at the relay to realize simultaneous wireless information and power transfer (SWIPT). We focus on the design of dynamic power splitting (DPS) strategy, in which the PS ratio is able to adjust itself according to the instantaneous channel state information (CSI). Specifically, we first formulate an optimization problem to maximize the outage throughput, subject to the NLEH. Since this formulated problem is nonconvex and difficult to solve, we further transfer it into an equivalent problem and develop a Dinkelbach iterative method to obtain the corresponding solution. Numerical results are given to verify the quick convergence of the proposed iterative method and show the superior outage throughput of the designed DPS strategy by comparing with two peer strategies designed for the linear energy harvesting (LEH) model.

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Outage Analysis in SWIPT-Based Decode-and-Forward Relay Networks with Partial Relay Selection

Modelling and Simulation in Engineering ◽

10.1155/2021/9944565 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Phu Tran Tin ◽

Van-Duc Phan ◽

Phu X. Nguyen ◽

Thanh-Long Nguyen ◽

Dong-Si Thien Chau ◽

...

Keyword(s):

Relay Network ◽

Power Splitting ◽

Decode And Forward ◽

Half Duplex ◽

Partial Relay Selection ◽

Rf Signals ◽

Static Power ◽

Optimal Dynamic ◽

Analytical Expressions ◽

Outage Analysis

This work studies the SWIPT-based half-duplex (HD) decode-and-forward (DF) relay network, wherein the relay user can scavenge power from the source’s radio-frequency (RF) signals and then utilize it to convey the information to the destination. Specifically, two SWIPT-based relaying schemes, termed static power splitting- (SPS-) based relaying (SPSR) and optimal dynamic power splitting- (DPS-) based relaying (ODPSR), are proposed to investigate the benefits of each one fully. Based on the above discussions, the relaying system’s performance for outage probability (OP) is studied. Concretely, we derive the analytical expressions for both SPSR and DPSR methods. Finally, the numerical simulations are executed to corroborate the analysis and simulation results.

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

Wireless Communications and Mobile Computing ◽

10.1155/2018/7638215 ◽

2018 ◽

Vol 2018 ◽

pp. 1-14 ◽

Cited By ~ 2

Author(s):

Syed Tariq Shah ◽

Daniel B. da Costa ◽

Kae Won Choi ◽

Min Young Chung

Keyword(s):

Energy Harvesting ◽

Energy Conversion ◽

Relay Network ◽

Power Splitting ◽

Decode And Forward ◽

Conversion Model ◽

Transmission Modes ◽

Energy Constrained ◽

Wireless Energy Harvesting ◽

Nonlinear Energy

Wireless energy harvesting has emerged as an efficient solution to prolong the lifetime of wireless networks composed of energy-constrained 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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The System Performance of Half-Duplex Relay Network under Effect of Interference Noise

Journal of Advanced Engineering and Computation ◽

10.25073/jaec.201821.75 ◽

2018 ◽

Vol 2 (1) ◽

pp. 18

Author(s):

Miroslav Voznak ◽

Hoang Quang Minh Tran ◽

N. Tan Nguyen

Keyword(s):

Energy Harvesting ◽

Outage Probability ◽

System Performance ◽

Ergodic Capacity ◽

Relay Network ◽

System Throughput ◽

Power Splitting ◽

Decode And Forward ◽

Interference Noise ◽

Wireless Energy Harvesting

In recent years, harvesting energy from radio frequency (RF) signals has drawn significant research interest as a promising solution to solve the energy problem. In this paper, we analyze the effect of the interference noise on the wireless energy harvesting performance of a decode-and-forward (DF) relaying network. In this analysis, the energy and information are transferred from the source to the relay nodes in the delay-limited transmission and Delay-tolerant transmission modes by two methods: i) time switching protocol and ii) power splitting protocol. Firstly, due to the constraint of the wireless energy harvesting at the relay node, the analytical mathematical expressions of the achievable throughput, outage probability and ergodic capacity of both schemes were proposed and demonstrated. After that, the effect of various system parameters on the system performance is rigorously studied with closed-form expressions for system throughput, outage probability, and ergodic capacity. Finally, the analytical results are also demonstrated by Monte-Carlo simulation. The results show that the analytical mathematical and simulated results agree with each other. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Relay Selection in Power Splitting Based Energy-Harvesting Half-Duplex Relay Networks

2017 IEEE 85th Vehicular Technology Conference (VTC Spring) ◽

10.1109/vtcspring.2017.8108276 ◽

2017 ◽

Cited By ~ 3

Author(s):

Dexin Wang ◽

Rongqing Zhang ◽

Xiang Cheng ◽

Liuqing Yang

Keyword(s):

Energy Harvesting ◽

Relay Selection ◽

Relay Networks ◽

Power Splitting ◽

Half Duplex

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Power Splitting and Source-Relay Selection in Energy Harvesting Wireless Network

10.21203/rs.3.rs-335081/v1 ◽

2021 ◽

Author(s):

xiao jiang ◽

Peng Li ◽

ruchuan wang

Keyword(s):

Energy Harvesting ◽

Outage Probability ◽

Relay Selection ◽

Relay Network ◽

Power Splitting ◽

Multiple Sources ◽

Decode And Forward ◽

Optimal Power ◽

Splitting Ratio ◽

Better Than

Abstract In this paper, we consider an energy-harvesting (EH) relay network composing of multiple sources, a destination and multiple EH decode-and-forward (DF) relays. The EH relays all equip with a power splitter to divide the received signal power into two parts, one for information decoding and the remaining for signal relaying. The power splitting ratio (PSR) depicts the trade-off between the relaying energy and decoding energy. We propose an optimal power splitting and joint source-relay selection (OPS-JSRS) scheme where the optimal power-splitting ratio is obtained and the best source-relay pair is selected to transmit the message. For the purpose of comparison, we examine the optimal power splitting and round-robin (OPS-RR) scheme and the traditional power splitting and joint source-relay selection (TPS-JSRS) scheme. The exact and asymptotic closed-form expressions of outage probability for OPS-RR, TPS-JSRS and OPS-JSRS schemes are derived. Numerical results show that OPS-JSRS scheme is better than OPS-RR and TPS-JSRS schemes in terms of outage probability, explaining the superiority of the proposed OPS-JSRS scheme. Additionally, outage probability performance of OPS-JSRS scheme can be improved by increasing the number of sources and relays.

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Hybrid TSR–PSR Alternate Energy Harvesting Relay Network over Rician Fading Channels: Outage Probability and SER Analysis

Sensors ◽

10.3390/s18113839 ◽

2018 ◽

Vol 18 (11) ◽

pp. 3839 ◽

Cited By ~ 6

Author(s):

Tan Nguyen ◽

Phu Tran Tin ◽

Duy Ha ◽

Miroslav Voznak ◽

Phuong Tran ◽

...

Keyword(s):

Energy Harvesting ◽

Outage Probability ◽

Fading Channels ◽

Relay Network ◽

Rician Fading ◽

Power Splitting ◽

Amplify And Forward ◽

System Parameters ◽

Alternate Energy ◽

Rician Fading Channels

In this research, we investigate a hybrid time-switching relay (TSR)–power-splitting relay (PSR) alternate energy harvesting (EH) relaying network over the Rician fading channels. For this purpose, the amplify-and-forward (AF) mode is considered for the alternative hybrid time TSR–PSR. The system model consists of one source, one destination and two alternative relays for signal transmission from the source to the destination. In the first step, the exact and asymptotic expressions of the outage probability and the symbol errors ratio (SER) are derived. Then, the influence of all system parameters on the system performance is investigated, and the Monte Carlo simulation verifies all results. Finally, the system performances of TSR–PSR, TSR, and PSR cases are compared in connection with all system parameters.

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