TY - JOUR
T1 - Modelling and synchronisation of delayed packet-coupled oscillators in industrial wireless sensor networks
AU - Zong, Yan
AU - Dai, Xuewu
AU - Canyelles-Pericas, Pep
AU - Busawon, Krishna
AU - Binns, Richard
AU - Gao, Zhiwei
N1 - Funding information: Yan Zong gratefully acknowledges financial support from the University of Northumbria at Newcastle via a postgraduate research studentship.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - In this paper, a Packet-Coupled Oscillators (PkCOs) synchronisation protocol is proposed for time-sensitive Wireless Sensor Networks (WSNs) based on Pulse-Coupled Oscillators (PCO) in mathematical biology. The effects of delays on synchronisation performance are studied through mathematical modelling and analysis of packet exchange and processing delays. The delay compensation strategy (i.e., feedforward control) is utilised to cancel delays effectively. A simple scheduling function is provided with PkCOs to allocate the packet transmission event to a specified time slot, by configuring reference input of the system to a non-zero value, in order to minimise the possibility of packet collision in synchronised wireless networks. The rigorous theoretical proofs are provided to validate the convergence and stability of the proposed synchronisation scheme. Finally, the simulations and experiments examine the effectiveness of PkCOs with delay compensation and scheduling strategies. The experimental results also show that the proposed PkCOs algorithm can achieve synchronisation with the precision of 26.3µs (1 tick).
AB - In this paper, a Packet-Coupled Oscillators (PkCOs) synchronisation protocol is proposed for time-sensitive Wireless Sensor Networks (WSNs) based on Pulse-Coupled Oscillators (PCO) in mathematical biology. The effects of delays on synchronisation performance are studied through mathematical modelling and analysis of packet exchange and processing delays. The delay compensation strategy (i.e., feedforward control) is utilised to cancel delays effectively. A simple scheduling function is provided with PkCOs to allocate the packet transmission event to a specified time slot, by configuring reference input of the system to a non-zero value, in order to minimise the possibility of packet collision in synchronised wireless networks. The rigorous theoretical proofs are provided to validate the convergence and stability of the proposed synchronisation scheme. Finally, the simulations and experiments examine the effectiveness of PkCOs with delay compensation and scheduling strategies. The experimental results also show that the proposed PkCOs algorithm can achieve synchronisation with the precision of 26.3µs (1 tick).
KW - Delay
KW - Internet of things
KW - Mathematical modelling
KW - Packet-coupled oscillators
KW - Pulse-coupled oscillators
KW - Time synchronisation
KW - Wireless sensor networks
UR - http://www.scopus.com/inward/record.url?scp=85107533030&partnerID=8YFLogxK
U2 - 10.1016/j.ifacol.2020.12.1953
DO - 10.1016/j.ifacol.2020.12.1953
M3 - Conference article
AN - SCOPUS:85107533030
SN - 1474-6670
VL - 53
SP - 8283
EP - 8289
JO - IFAC-PapersOnLine
JF - IFAC-PapersOnLine
IS - 2
T2 - 21st IFAC World Congress 2020
Y2 - 12 July 2020 through 17 July 2020
ER -