Low jitter scheduling for Industrial Wireless Sensor and Actuator Networks

Kan Yu, Mikael Gidlund, Johan Akerbergy, Mats Bjorkman
2013 IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society  
Applying Industrial Wireless Sensor and Actuator Networks (IWSANs) in the industrial automation is a growing trend due to flexibility, mobility and low cost. According to the current standards, such as WirelessHART and ISA100.11a, multichannel TDMA transmission is included for reliable and deterministic communication. In this paper, we clarify the dependence of TDMA scheduling for sensors and actuators and point out the low correlation between the scheduling delay and the overall quality of
more » ... rol, and focus on reducing jitter in scheduling for improving quality of control and system stability. We propose a scheduling algorithm, aiming for lowing jitter and compare it with two traditional real-time scheduling schemes. Our simulation results exhibit significantly lower jitters by applying our scheduling policy than those two traditional scheduling schemes.
doi:10.1109/iecon.2013.6700050 dblp:conf/iecon/YuGAB13 fatcat:nkhdloshkbdyfo6fdchb3h5dqm