Research on Data Cache Algorithm of Fog Computing Node

Author(s):  
Wenle Bai ◽  
Hongya Feng ◽  
Yuehai Wang ◽  
Xi Han
IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 21126-21138 ◽  
Author(s):  
Stefania Conti ◽  
Giuseppe Faraci ◽  
Rosario Nicolosi ◽  
Santi Agatino Rizzo ◽  
Giovanni Schembra

Author(s):  
Maria B. Safianowska ◽  
Yi-Chieh Peter Chang ◽  
Te-Jen Wang ◽  
Chih-Wei Huang ◽  
Ching Yao Huang

2019 ◽  
Vol 11 (1) ◽  
pp. 168781401881951 ◽  
Author(s):  
Jianqiang Hu ◽  
Keshou Wu ◽  
Wei Liang

The new generation healthcare monitoring system combines technologies of wireless body sensor network, cloud computing, and Bigdata, and there are still limitations in protocol security, response delay, and prediction of potential severity disease. In response to the above situation, an Internet Protocol Version 6 (IPv6)-based framework for fog-assisted healthcare monitoring is proposed. This framework is composite of body-sensing layer, fog layer, and cloud layer. The body-sensing layer generates physiological data, and fog computing node in fog layer collects and analyses time-sensitive data. Fog layer sends physiological data to cloud computing node in cloud layer for further processing. Mobile intelligent device connects fog computing node and helps individuals to predict the potential disease with its level of severity. The proposed framework uses advanced techniques such as IPv6-based network architecture, cloud–fog resource scheduling algorithm based on time threshold, and classification model of chronic diseases based on cascaded deep learning and so on. In order to determine the validity of the framework, health data were systematically generated from 45 patients for 30 days. Results depict that the proposed classification model of chronic diseases has high accuracy in determining the level of severity of potential disease. Moreover, response delay is much lower than Internet Protocol Version 4 (IPv4)-based cloud-assisted environment.


Author(s):  
Alexandre Heideker ◽  
Dener Ottolini Silva ◽  
Ivan Zyrianoff ◽  
João Henrique Kleinschmidt ◽  
Carlos Alberto Kamienski

The concept of Internet of Things (IoT) comes with a large number of devices linked to the Internet, including urban, industrial and agriculture environment. Managing and monitoring these devices, whether virtual or physical, across multiple hardware and software platforms, is a major challenge. There are market solutions but for specific domain and platforms, overall closed and not customizable. We introduce the IMAIoT, an infrastructure monitoring tool that uses the high scalable IoT's protocol and architecture to publish its metrics. The tools versatility allows to monitor from physical machines in a datacenter to small devices such as fog computing node.


2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Gunjae Yoon ◽  
Donghwa Choi ◽  
Jeongjin Lee ◽  
Hoon Choi

As IoT systems spread, transmissions of all data from various sensing devices to a remote OM (Operation and Management) server through the Internet can lead to many problems, such as an explosion of network traffic and delayed responses to data. Fog computing is a good means of resolving these problems in an IoT system environment. In this paper, a management method for sensor data in a fog computing node is proposed. The monitoring node monitors data from sensor devices using a data pattern from the OM server, which dynamically generates and updates the pattern. The monitoring node reports only the data beyond the normal range of the pattern to the OM server rather than sending all data to the OM server. The monitoring node can control the operations of sensor devices remotely according to the requests of the OM server.


2020 ◽  
Vol 140 (9) ◽  
pp. 1030-1039
Author(s):  
W.A. Shanaka P. Abeysiriwardhana ◽  
Janaka L. Wijekoon ◽  
Hiroaki Nishi

Author(s):  
Istabraq M. Al-Joboury ◽  
Emad H. Al-Hemiary

Fog Computing is a new concept made by Cisco to provide same functionalities of Cloud Computing but near to Things to enhance performance such as reduce delay and response time. Packet loss may occur on single Fog server over a huge number of messages from Things because of several factors like limited bandwidth and capacity of queues in server. In this paper, Internet of Things based Fog-to-Cloud architecture is proposed to solve the problem of packet loss on Fog server using Load Balancing and virtualization. The architecture consists of 5 layers, namely: Things, gateway, Fog, Cloud, and application. Fog layer is virtualized to specified number of Fog servers using Graphical Network Simulator-3 and VirtualBox on local physical server. Server Load Balancing router is configured to distribute the huge traffic in Weighted Round Robin technique using Message Queue Telemetry Transport protocol. Then, maximum message from Fog layer are selected and sent to Cloud layer and the rest of messages are deleted within 1 hour using our proposed Data-in-Motion technique for storage, processing, and monitoring of messages. Thus, improving the performance of the Fog layer for storage and processing of messages, as well as reducing the packet loss to half and increasing throughput to 4 times than using single Fog server.


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