196,243 research outputs found
Secure Key Renewal in WirelessHART
No full textWirelessHART is a wireless extension to the HART protocol. Even though WirelessHART is designed to be a secure protocol, the loopholes in the key management system makes it vulnerable to security threats. The broadcast approach for key renewal mechanisms in WirelessHART is not secure enough to be used in sensitive industrial automation environments where breach of security may result in catastrophic results. Also, key distribution with unicast communication with each device requires O(n) rekeying messages, where n is the size of the network.
In this paper we provide a secure and scalable key renewal
protocol for WirelessHART that reduces the communication
overhead to O(logn). Our protocol requires far less messages
than the conventional unicast approach
Noise Power Estimators in ISM Radio Environments: Performance Comparison and Enhancement Using a Novel Samples Separation Technique
No full text
Priority-Aware Wireless Fieldbus Protocol for Mixed-Criticality Industrial Wireless Sensor Networks
No full textSimple interference detection and classification for industrial Wireless Sensor Networks
No full textGuest Editorial From Industrial Wireless Sensor Networks to Industrial Internet of Things
No full textTIMELINES
Using LoRa for industrial wireless networks
No full textThe new concept of Industry 4.0 has been developed: it includes both Internet of Things (IoT) structure and the local networks that are still needed to carry out real-time tasks. However, forecasts of mass application of consumer IoT system have stimulated the development of new wireless technologies that may also be interesting for industry. In this paper, the LoRa technology is investigated for the implementation of industrial wireless networks suitable for sensors and actuators of the Industry 4.0 era. After a brief overview of LoRa and LoRaWAN, the paper deals with the discussion about using LoRa for industrial applications compared to traditional industrial wireless systems. With only very light modifications to the upper layer of LoRaWAN communication stack, a time slot channel hopping schema is possible. The experimental results show the feasibility of the proposed approach, which is compatible with requirements of soft real-time applications in process industry. In particular, proper time, frequency, and spreading factor planning may allow 6000 nodes accessed up to one minute cycle time.</p
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
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