scholarly journals Throughput Characterization for Cooperative Wireless Information Transmission with RF Energy Harvesting-Based Relay

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Yuanyuan Yao ◽  
Changchuan Yin ◽  
Sai Huang
Keyword(s):  
Information Transmission ◽  
Cooperative Relaying ◽  
Network Throughput ◽  
Transmission Mode ◽  
Destination Node ◽  
Power Splitting ◽  
Power Transfer ◽  
Time Switching ◽  
Transmission Modes ◽  
Rf Energy

The simultaneous wireless information and power transfer (SWIPT) in a cooperative relaying system is investigated, where the relay node is self-sustained by harvesting radiofrequency (RF) energy from the source node. In this paper, we propose a time switching and power splitting (TSPS) protocol for the cooperative system with a mobile destination node. In the first part of the transmission slot, a portion of the received signal power is used for energy transfer, and the remaining power is used for information transmission from the source to the relay. For the remaining time of the transmission slot, information is transmitted from the relay to a mobile destination node. To coordinate the wireless information and power transfer, two transmission modes are investigated, namely, relay-assisted transmission mode and nonrelay mode, respectively. Under these two modes, the outage probability and the network throughput are characterized. By joint optimization of the power splitting and the time switching ratios, we further compare the network throughput under the two transmission modes with different parameters. Results indicate that the relay-assisted transmission mode significantly improves the throughput of the wireless network.

Performance Analysis for Wireless Power Transfer in Bi-directional DF Relaying aid MRC over Nakagami-m Fading.

2021 ◽  
Author(s):  
DHARMENDRA PRAJAPATI ◽  
Ashraf Hossain ◽  
Gaurav Singh Baghel
Keyword(s):  
Information Transfer ◽  
Relay Node ◽  
Cooperative Relaying ◽  
Modulation Scheme ◽  
Destination Node ◽  
Power Splitting ◽  
Power Transfer ◽  
Maximum Ratio Combining ◽  
Third Phase ◽  
Two Stages

Abstract In this paper, we research the performance of a bi-directional three-node cooperative relaying network that aids simultaneous wireless information and power transfer (SWIPT) in a direct connection region that is inuenced by the Nakagami-m fading environment. The information transfer between source nodes can be completed in three equal time phases if we consider two source nodes with direct links and a battery-enabled node.[1] . The maximum-ratio combining (MRC) approach was used at the destination node to use both the direct and relay links. In the rst two stages, the harvested energy at the relay node was used for power splitting (PS), and in the third phase, the harvested energy was used for information processing (IP) and broadcasting. We extract simple and detailed generalized average bit error rate (ABER) expressions for BFSK, BPSK, QPSK, and 4-PAM for the Consider scheme. The derived expressions are applicable to any coherent modulation scheme.

scholarly journals Beamforming Design for Wireless Information and Power Transfer Systems: Receive Power-Splitting Versus Transmit Time-Switching

2017 ◽  
Vol 65 (2) ◽  
pp. 876-889 ◽  
Author(s):  
Ali Arshad Nasir ◽  
Hoang Duong Tuan ◽  
Duy Trong Ngo ◽  
Trung Q. Duong ◽  
H. Vincent Poor
Keyword(s):  
Power Splitting ◽  
Power Transfer ◽  
Time Switching ◽  
Receive Power

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 Outage probability analysis for hybrid TSR-PSR based SWIPT systems over log-normal fading channels

2021 ◽  
Vol 11 (5) ◽  
pp. 4233
Author(s):  
Hoang Thien Van ◽  
Hoang-Phuong Van ◽  
Danh Hong Le ◽  
Ma Quoc Phu ◽  
Hoang-Sy Nguyen
Keyword(s):  
Outage Probability ◽  
Fading Channels ◽  
System Performance ◽  
Signal To Noise Ratio ◽  
Cooperative Relaying ◽  
Power Splitting ◽  
Amplify And Forward ◽  
Time Switching ◽  
Log Normal ◽  
The Impact

Employing simultaneous information and power transfer (SWIPT) technology in cooperative relaying networks has drawn considerable attention from the research community. We can find several studies that focus on Rayleigh and Nakagami-m fading channels, which are used to model outdoor scenarios. Differing itself from several existing studies, this study is conducted in the context of indoor scenario modelled by log-normal fading channels. Specifically, we investigate a so-called hybrid time switching relaying (TSR)-power splitting relaying (PSR) protocol in an energy-constrained cooperative amplify-and-forward (AF) relaying network. We evaluate the system performance with outage probability (OP) by analytically expressing and simulating it with Monte Carlo method. The impact of power-splitting (PS), time-switching (TS) and signal-to-noise ratio (SNR) on the OP was as well investigated. Subsequently, the system performance of TSR, PSR and hybrid TSR-PSR schemes were compared. The simulation results are relatively accurate because they align well with the theory.

scholarly journals Energy Harvesting and Information Transmission Mode Design for Cooperative EH-Abled IoT Applications in beyond 5G Networks

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Hongyuan Gao ◽  
Shibo Zhang ◽  
Yumeng Su ◽  
Ming Diao
Keyword(s):  
Energy Harvesting ◽  
Information Transmission ◽  
Spectrum Sharing ◽  
Information Transfer ◽  
Transmission Mode ◽  
Primary System ◽  
Power Splitting ◽  
5G Networks ◽  
Iot Applications ◽  
Whale Optimization

Energy harvesting (EH) technology is considered to be a promising approach to provide enough energy for energy-constrained Internet of Things (IoT). In this paper, we propose an energy harvesting and information transmission mode for the spectrum sharing system with cooperative EH-abled IoT applications in beyond 5G networks. Different from most existing IoT spectrum-sharing research studies, in our system, both primary user (PU) and IoT devices (IDs) collect energy for their information transmission. In addition, for all IDs, they should realize two communication functions: working as relays to help the information transfer process of PU and completing their own information transmission. We analytically derive exact expressions for the throughput of the primary system and IoT system and then formulate two objective functions. It is easy to see that power splitting ratio, dynamic EH ratio, power sharing ratio, and relay selection should be optimized to get the best performance for different communication circumstances. Actually, it is a hybrid NP-hard problem to optimize these parameters and traditional algorithms cannot solve it well. Therefore, a novel algorithm-quantum whale optimization algorithm (QWOA) is proposed to obtain the best performance. Simulation results show the good performance of QWOA in different simulation scenarios.

scholarly journals Robust Beamforming Design for Secure V2X Downlink System with Wireless Information and Power Transfer under a Nonlinear Energy Harvesting Model

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3294 ◽  
Author(s):  
Shidang Li ◽  
Chunguo Li ◽  
Weiqiang Tan ◽  
Baofeng Ji ◽  
Luxi Yang
Keyword(s):  
Energy Harvesting ◽  
Traffic Safety ◽  
Optimization Problem ◽  
Optimal Solution ◽  
Base Station ◽  
Power Splitting ◽  
Power Transfer ◽  
Vehicular Communication ◽  
Downlink System ◽  
Nonlinear Energy

Vehicle to everything (V2X) has been deemed a promising technology due to its potential to achieve traffic safety and efficiency. This paper considers a V2X downlink system with a simultaneous wireless information and power transfer (SWIPT) system where the base station not only conveys data and energy to two types of wireless vehicular receivers, such as one hybrid power-splitting vehicular receiver, and multiple energy vehicular receivers, but also prevents information from being intercepted by the potential eavesdroppers (idle energy vehicular receivers). Both the base station and the energy vehicular receivers are equipped with multiple antennas, whereas the information vehicular receiver is equipped with a single antenna. In particular, the imperfect channel state information (CSI) and the practical nonlinear energy harvesting (EH) model are taken into account. The non-convex optimization problem is formulated to maximize the minimum harvested energy power among the energy vehicular receivers satisfying the lowest harvested energy power threshold at the information vehicular receiver and secure vehicular communication requirements. In light of the intractability of the optimization problem, the semidefinite relaxation (SDR) technique and variable substitutions are applied, and the optimal solution is proven to be tight. A number of results demonstrate that the proposed robust secure beamforming scheme has better performance than other schemes.

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