scholarly journals System performance analysis of hybrid time-power switching protocol of EH bidirectional relaying network in amplify-and-forward mode

2019 ◽  
Vol 14 (1) ◽  
pp. 118
Author(s):  
Phu Tran Tin ◽  
Minh Tran ◽  
Tan N. Nguyen ◽  
Thanh-Long Nguyen
Keyword(s):  
System Performance ◽  
Ergodic Capacity ◽  
System Throughput ◽  
Amplify And Forward ◽  
Power Switching ◽  
System Parameters ◽  
Transmission Modes ◽  
Bidirectional Relaying ◽  
Delay Tolerant ◽  
Parameter Values

<p><span>In this paper, we investigate system performance in term of throughput and ergodic capacity of the hybrid time-power switching protocol of energy harvesting bidirectional relaying network. In the first stage, the analytical expression of the system throughput and ergodic capacity of the model system is proposed and derived. In this analysis, both delay-limited and delay-tolerant transmission modes are presented and considered. After that, the effect of various system parameters on the proposed system is investigated and demonstrated by Monte-Carlo simulation. Finally, the results show that the analytical mathematical and simulated results match for all possible parameter values for both schemes.</span></p>

scholarly journals Half-duplex power beacon-assisted energy harvesting relaying networks: system performance analysis

2019 ◽  
Vol 9 (5) ◽  
pp. 3399
Author(s):  
Tan N. Nguyen ◽  
Minh Tran ◽  
Van-Duc Phan ◽  
Hoang-Nam Nguyen ◽  
Thanh-Long Nguyen
Keyword(s):  
Energy Harvesting ◽  
System Performance ◽  
System Throughput ◽  
Primary System ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
System Parameters ◽  
Half Duplex ◽  
Simulation Results ◽  
Analytical Expressions

<p>In this work, the half-duplex (HF) power beacon-assisted (PB) energy harvesting (EH) relaying network, which consists of a source (S), Relay (R), destination (D) and a power beacon (PB) are introduced and investigated. Firstly, the analytical expressions of the system performance in term of outage probability (OP) and the system throughput (ST) are analyzed and derived in both amplify-and-forward (AF) and decode-and-forward (DF) modes. After that, we verify the correctness of the analytical analysis by using Monte-Carlo simulation in connection with the primary system parameters. From the numerical results, we can see that all the analytical and the simulation results are matched well with each other.</p>

scholarly journals Exact Performance Analysis of Amplify-and-Forward Bidirectional Relaying over Nakagami-m Fading Channels with Arbitrary Parameters

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1277
Author(s):  
Dong Qin ◽  
Yuhao Wang ◽  
Tianqing Zhou
Keyword(s):  
Fading Channels ◽  
Signal To Noise Ratio ◽  
Ergodic Capacity ◽  
Moment Generating Function ◽  
Amplify And Forward ◽  
Relay Systems ◽  
Signal Error ◽  
Bidirectional Relaying ◽  
Fading Parameter ◽  
The Moment

The exact performance of amplify-and-forward (AF) bidirectional relay systems is studied in generalized and versatile Nakagami-m fading channels, where the parameter m is an arbitrary positive number. We consider three relaying modes: two, three, and four time slot bidirectional relaying. Closed form expressions of the moment generating function (MGF), higher order moments of signal-to-noise ratio (SNR), ergodic capacity, and average signal error probability (SEP) are derived, which are different from previous works. The obtained expressions are very concise, easy to calculate, and evaluated instantaneously without a complex summation operation, in contrast to the nested multifold numerical integrals and truncated infinite series expansions used in previous work, which lead to computational inefficiency, especially when the fading parameter m increases. Simulation results corroborate the correctness and tightness of the theoretical analysis.

scholarly journals Application of NOMA in Wireless System with Wireless Power Transfer Scheme: Outage and Ergodic Capacity Performance Analysis

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3501 ◽  
Author(s):  
Dinh-Thuan Do ◽  
Chi-Bao Le
Keyword(s):  
Energy Harvesting ◽  
Transmission Rate ◽  
Signal To Noise Ratio ◽  
Ergodic Capacity ◽  
Power Splitting ◽  
Amplify And Forward ◽  
Transfer Scheme ◽  
Power Switching ◽  
The Right ◽  
Capacity Performance

Non-orthogonal multiple access (NOMA) and energy harvesting (EH) are combined to introduce a dual-hop wireless sensor system. In particular, this paper considers a novel EH protocol based on time power switching-based relaying (TPSR) architecture for amplify-and-forward (AF) mode. We introduce a novel system model presenting wireless network with impacts of energy harvesting fractions and derive analytical expressions for outage probability and ergodic rate for the information transmission link. It confirmed that the right selection of power allocation for NOMA users can be performed to obtain optimal outage and ergodic capacity performance. Theoretical results show that, in comparison with the conventional solutions, the proposed model can achieve acceptable outage performance for sufficiently small threshold signal to noise ratio (SNR) with condition of controlling time switching fractions and power splitting fractions appropriately in considered TPSR protocol. We also examine the impacts of transmitting power at source, transmission rate, the other key parameters of TPSR to outage, and ergodic performance. Simulation results are presented to corroborate the proposed system.

Optically Triggered Power Switch Based on 4H-SiC Vertical JFET

2011 ◽  
Vol 679-680 ◽  
pp. 625-628
Author(s):  
Petre Alexandrov ◽  
Xue Qing Li ◽  
Jian Hui Zhao
Keyword(s):  
Light Source ◽  
High Power ◽  
System Performance ◽  
Low Voltage ◽  
Proper Choice ◽  
Limiting Factors ◽  
Switching Frequency ◽  
Power Switching ◽  
System Parameters ◽  
Power Switch

An optically controlled power switch based on 4H-SiC Trenched and Implanted Vertical JFETs (TIVJFET) was developed that comprises three parts: an LED light-source driver, light-triggered integrated gate buffer driver, and vertical high power normally-off switch. The light-triggered integrated gate buffer driver includes a photodiode and four stages of low voltage 4H-SiC TIVJFETs, which are hybrid integrated. Optically gated power switching was experimentally demonstrated with a maximum switching frequency of about 50 kHz, the system performance limiting factors were clearly identified and experimentally confirmed, and ways to substantially increase the switching frequency were shown. From calculations, based on realistically possible system parameters values, it could be seen that a maximum switching frequency around 1 MHz is theoretically possible with a proper choice of light source, detector, and buffer transistor parameters.

scholarly journals The System Performance of Half-Duplex Relay Network under Effect of Interference Noise

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.

scholarly journals Power Beacon-Assisted Energy Harvesting Wireless Physical Layer Cooperative Relaying Networks: Performance Analysis

Symmetry ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 106 ◽  
Author(s):  
Phu Tran Tin ◽  
Bach Hoang Dinh ◽  
Tan N. Nguyen ◽  
Duy Hung Ha ◽  
Tran Thanh Trang
Keyword(s):  
Energy Harvesting ◽  
Physical Layer ◽  
Cooperative Relaying ◽  
Full Duplex ◽  
System Throughput ◽  
Power Splitting ◽  
Cooperative Network ◽  
Layer System ◽  
Transmission Modes ◽  
Delay Tolerant

In this research, we proposed and investigated the physical layer system called the full-duplex (FD) power beacon-assisted (PB) energy harvesting (EH) relaying cooperative network. The system model has one PB node, one destination (D), one source (S), and one relay (R) node. We investigated the system performance in terms of outage probability (OP) and system throughput (ST) with the power-splitting (PS) protocol in both delay-tolerant (DTT) and delay-limited (DLT) transmission modes. Moreover, the optimal power splitting (PS) factor in both DDT and DLT modes is proposed and derived. Finally, the mathematical closed-form expressions of the OP and ST are derived by using the Monte Carlo simulation with the help of MATLAB software. From the results, it can be observed that the analytical values and simulation values are the same in the effect of the main system parameters.

scholarly journals Adaptive Energy Harvesting Relaying Protocol for Two-Way Half-Duplex System Network over Rician Fading Channels

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Tan N. Nguyen ◽  
Tran Hoang Quang Minh ◽  
Phuong T. Tran ◽  
Miroslav Voznak
Keyword(s):  
Energy Harvesting ◽  
Closed Form ◽  
Fading Channels ◽  
System Performance ◽  
Relay Network ◽  
Rician Fading ◽  
Destination Node ◽  
Amplify And Forward ◽  
Duplex System ◽  
System Parameters

We investigate the system performance of a two-way amplify-and-forward (AF) energy harvesting relay network over the Rician fading environment. For details, the delay-limited (DL) and delay-tolerant (DT) transmission modes are proposed and investigated when both energy and information are transferred between the source node and the destination node via a relay node. In the first stage, the analytical expressions of the achievable throughput, ergodic capacity, the outage probability, and symbol error ratio (SER) were proposed, analyzed, and demonstrated. After that, the closed-form expressions for the system performance are studied in connection with all system parameters. Moreover, the analytical results are also demonstrated by Monte Carlo simulation in comparison with the closed-form expressions. Finally, the research results show that the analytical and the simulation results agree well with each other in all system parameters.

scholarly journals A new look at energy harvesting half-duplex DF power splitting protocol relay network over rician channel in case of maximizing capacity

2019 ◽  
Vol 13 (1) ◽  
pp. 249
Author(s):  
Phu Tran Tin ◽  
Minh Tran ◽  
Tan N. Nguyen ◽  
Thanh-Long Nguyen
Keyword(s):  
System Performance ◽  
Ergodic Capacity ◽  
Relay Network ◽  
Rician Fading ◽  
Power Splitting ◽  
Decode And Forward ◽  
Mathematical Expressions ◽  
Half Duplex ◽  
Parameter Values ◽  
Analytical Expressions

<span>In this paper, the system performance in term of the ergodic capacity of a half-duplex decode-and-forward relaying network over Rician Fading Channel is investigated. The power splitting protocol is proposed for the system model. For this purpose, the analytical mathematical expressions of the ergodic capacity in cases of maximize and no-maximize ergodic capacity are derived and discussed. Furthermore, the effect of various system parameters on the system performance is rigorously studied. Finally, the analytical results are also demonstrated by Monte-Carlo simulation in comparison with the analytical expressions. The research results show that the analytical mathematical and simulated results match for all possible parameter values for both schemes. </span>

scholarly journals Multisource Power Splitting Energy Harvesting Relaying Network in Half-Duplex System over Block Rayleigh Fading Channel: System Performance Analysis

Electronics ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 67 ◽  
Author(s):  
Tan N. Nguyen ◽  
Minh Tran ◽  
Thanh-Long Nguyen ◽  
Duy-Hung Ha ◽  
Miroslav Voznak
Keyword(s):  
Energy Harvesting ◽  
Fading Channels ◽  
System Performance ◽  
Rayleigh Fading ◽  
Ergodic Capacity ◽  
Green Energy ◽  
System Throughput ◽  
Power Splitting ◽  
Duplex System ◽  
Half Duplex

Energy harvesting and information transferring simultaneously by radio frequency (RF) is considered as the novel solution for green-energy wireless communications. From that point of view, the system performance (SP) analysis of multisource power splitting (PS) energy harvesting (EH) relaying network (RN) over block Rayleigh-fading channels is presented and investigated. We investigate the system in both delay-tolerant transmission (DTT), and delay-limited transmission (DLT) modes and devices work in the half-duplex (HD) system. In this model system, the closed-form (CF) expressions for the outage probability (OP), system throughput (ST) in DLT mode and for ergodic capacity (EC) for DTT mode are analyzed and derived, respectively. Furthermore, CF expression for the symbol errors ratio (SER) is demonstrated. Then, the optimal PS factor is investigated. Finally, a Monte Carlo simulation is used for validating the analytical expressions concerning with all system parameters (SP).

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