RT-Notification： A Novel Real-Time Notification Protocol for Wireless Control in Fog Computing

Fog computing is an emerging paradigm that has broad applications including storage, measurement and control. In this paper, we propose a novel real-time notification protocol called RT-Notification for wireless control in fog computing. RT-Notification provides low-latency TDMA communication betwee...

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Bibliographic Details
Published in:China communications 2017-11, Vol.14 (11), p.17-28
Main Authors: Feng, Li, Yang, Jie, Zhang, Huan
Format: Article
Language:English
Subjects:
Actuators
Edge computing
fog computing
IEEE 802.11 Standard
notification
Protocols
real-time
Real-time systems
Uplink
Wireless communication
wireless control
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Summary:Fog computing is an emerging paradigm that has broad applications including storage, measurement and control. In this paper, we propose a novel real-time notification protocol called RT-Notification for wireless control in fog computing. RT-Notification provides low-latency TDMA communication between an access point in Fog and a large number of portable monitoring devices equipped with sensor and actuator. RT-Notification differentiates two types of controls： urgent downlink actuator-oriented control and normal uplink access ＆ scheduling control. Different from existing protocols, RT-Notification has two salient features：（i） support real-time notification of control frames, while not interrupting ongoing other transmissions, and（ii） support on-demand channel allocation for normal uplink access ＆ scheduling control. RT-Notification can be implemented based on the commercial off-the-shelf 802.11 hardware. Our extensive simulations verify that RT-Notification is very effective in supporting the above two features.
ISSN:1673-5447
DOI:10.1109/CC.2017.8233647