scholarly journals Impact of Wireless-Powered Communications in Coexisting Mobile Networks

2020 ◽  
Author(s):  
Luis Irio ◽  
Rodolfo Oliveira ◽  
Daniel B. da Costa ◽  
Mohamed-Slim Alouini
Keyword(s):  
Wireless Networks ◽  
Energy Harvesting ◽  
Outage Probability ◽  
Mobile Networks ◽  
Optimal Harvesting ◽  
Communication Performance ◽  
Mobile Wireless ◽  
Harvesting Process ◽  
The Impact

<pre>In this letter, we investigate the impact of wireless-powered communications when energy is harvested from multiple static and/or mobile wireless coexisting networks.</pre><pre>In a first step, we characterize the aggregate power received by a harvester node when it harnesses the energy generated by the coexisting wireless networks. Considering that the harvester node acts as a transmitter after the harvesting duration, we derive the outage probability for such coexisting scenario. In addition, the throughput achieved by the harvester node is also characterized, and the optimal harvesting duration is identified taking into account the mobility of the coexisting networks, the features of the static networks, the energy harvesting process, as well as the communication performance between the harvester node and the receiver. Our work shows that the distribution of the power received by the harvester from the coexisting networks can be accurately approximated by an $\alpha-\mu$ distribution. Moreover, the mobility also impacts on the optimal throughput of the wireless-powered communications, which is accurately confirmed by the proposed analysis and extensive simulations.</pre>

scholarly journals Impact of Wireless-Powered Communications in Coexisting Mobile Networks

2020 ◽  
Author(s):  
Luis Irio ◽  
Rodolfo Oliveira ◽  
Daniel B. da Costa ◽  
Mohamed-Slim Alouini
Keyword(s):  
Wireless Networks ◽  
Energy Harvesting ◽  
Outage Probability ◽  
Mobile Networks ◽  
Optimal Harvesting ◽  
Communication Performance ◽  
Mobile Wireless ◽  
Harvesting Process ◽  
The Impact

<pre>In this letter, we investigate the impact of wireless-powered communications when energy is harvested from multiple static and/or mobile wireless coexisting networks.</pre><pre>In a first step, we characterize the aggregate power received by a harvester node when it harnesses the energy generated by the coexisting wireless networks. Considering that the harvester node acts as a transmitter after the harvesting duration, we derive the outage probability for such coexisting scenario. In addition, the throughput achieved by the harvester node is also characterized, and the optimal harvesting duration is identified taking into account the mobility of the coexisting networks, the features of the static networks, the energy harvesting process, as well as the communication performance between the harvester node and the receiver. Our work shows that the distribution of the power received by the harvester from the coexisting networks can be accurately approximated by an $\alpha-\mu$ distribution. Moreover, the mobility also impacts on the optimal throughput of the wireless-powered communications, which is accurately confirmed by the proposed analysis and extensive simulations.</pre>

scholarly journals Congestion Control and Traffic Scheduling for Collaborative Crowdsourcing in SDN Enabled Mobile Wireless Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Dawei Shen ◽  
Wei Yan ◽  
Yuhuai Peng ◽  
Yanhua Fu ◽  
Qingxu Deng
Keyword(s):  
Wireless Networks ◽  
Load Balancing ◽  
Congestion Control ◽  
Communication Networks ◽  
Mobile Networks ◽  
Scheduling Algorithm ◽  
Mobile Wireless Networks ◽  
Traffic Scheduling ◽  
Mobile Wireless ◽  
Artificial Fish Swarm Algorithm

Currently, a number of crowdsourcing-based mobile applications have been implemented in mobile networks and Internet of Things (IoT), targeted at real-time services and recommendation. The frequent information exchanges and data transmissions in collaborative crowdsourcing are heavily injected into the current communication networks, which poses great challenges for Mobile Wireless Networks (MWN). This paper focuses on the traffic scheduling and load balancing problem in software-defined MWN and designs a hybrid routing forwarding scheme as well as a congestion control algorithm to achieve the feasible solution. The traffic scheduling algorithm first sorts the tasks in an ascending order depending on the amount of tasks and then solves it using a greedy scheme. In the proposed congestion control scheme, the traffic assignment is first transformed into a multiknapsack problem, and then the Artificial Fish Swarm Algorithm (AFSA) is utilized to solve this problem. Numerical results on practical network topology reveal that, compared with the traditional schemes, the proposed congestion control and traffic scheduling schemes can achieve load balancing, reduce the probability of network congestion, and improve the network throughput.

scholarly journals Analysis of Outage Probability and Throughput for Energy Harvesting Full-Duplex Decode-and-Forward Vehicle-to-Vehicle Relay System

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Ba Cao Nguyen ◽  
Nguyen Nhu Thang ◽  
Tran Manh Hoang ◽  
Le The Dung
Keyword(s):  
Energy Harvesting ◽  
Outage Probability ◽  
Fading Channels ◽  
Rayleigh Fading ◽  
Full Duplex ◽  
Decode And Forward ◽  
Time Duration ◽  
Vehicle To Vehicle ◽  
Moving Vehicles ◽  
The Impact

In this paper, we evaluate the performance of a vehicle-to-vehicle (V2V) system where full-duplex relay (FDR) harvests the energy from source and uses decode-and-forward (DF) protocol to forward data from source to destination. Unlike existing works about FDR systems, we consider the scenario that both relay and destination are moving vehicles, leading to the channel between relay and destination characterized by double (cascade) Rayleigh fading. We successfully obtain the closed-form mathematical expressions of the outage probability (OP) and throughput of the considered energy harvesting- (EH-) FDR-V2V system. Based on these expressions, the system performance is investigated through various scenarios. Numerical results indicate that the performance of the considered system is reduced compared with that of the system over Rayleigh fading channels. We also observe that there is an optimal EH time duration that minimizes the OP and maximizes the throughput. This value depends on the transmission power of source. Furthermore, the OP goes to outage floor faster due to the impact of the residual self-interference (RSI), especially when RSI is high. All analysis results are verified by Monte-Carlo simulations.

scholarly journals Performance of symmetric and asymmetric links in wireless networks

2022 ◽  
Vol 12 (1) ◽  
pp. 605
Author(s):  
Yaesr Khamayseh ◽  
Rabiah Al-qudah
Keyword(s):  
Wireless Networks ◽  
Mobile Networks ◽  
Network Performance ◽  
Allocation Scheme ◽  
Simulation Experiments ◽  
Extensive Simulation ◽  
Resource Allocation Scheme ◽  
Fully Connected ◽  
The Impact ◽  
Asymmetric Links

<p>Wireless networks are designed to provide the enabling infrastructure for emerging technological advancements. The main characteristics of wireless networks are: Mobility, power constraints, high packet loss, and lower bandwidth. Nodes’ mobility is a crucial consideration for wireless networks, as nodes are moving all the time, and this may result in loss of connectivity in the network. The goal of this work is to explore the effect of replacing the generally held assumption of symmetric radii for wireless networks with asymmetric radii. This replacement may have a direct impact on the connectivity, throughput, and collision avoidance mechanism of mobile networks. The proposed replacement may also impact other mobile protocol’s functionality. In this work, we are mainly concerned with building and maintaining fully connected wireless network with the asymmetric assumption. For this extent, we propose to study the effect of the asymmetric links assumption on the network performance using extensive simulation experiments. Extensive simulation experiments were performed to measure the impact of these parameters. Finally, a resource allocation scheme for wireless networks is proposed for the dual rate scenario. The performance of the proposed framework is evaluated using simulation.</p>

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