Phase Desynchronization: A New Approach and Theory Using Pulse-Based Interaction

Anglea, Timothy; Wang, Yongqiang

doi:10.1109/tsp.2016.2633246

Cited by 10 publications

(6 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Future research is required to study the behavior of oscillators having non-identical frequencies and non-identical robots with heterogeneous heading constraints. Additional synchronization and desynchronization algorithms for pulse-coupled oscillators have also been proposed [24], [25], [30], [31], [33]. Further research is needed to determine if these other algorithms can achieve the desired robotic heading under the heading rate constraint and proposed control strategy and if our results can be extended to achieve general motion coordination.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Decentralized Heading Control With Rate Constraints Using Pulse-Coupled Oscillators

Anglea

Wang

2020

IEEE Trans. Control Netw. Syst.

Self Cite

View full text Add to dashboard Cite

Decentralized heading control is crucial for robotic network operations such as surveillance, exploration, and cooperative construction. However, few results consider decentralized heading control when the speed of heading adjustment is restricted. In this paper, we propose a simple hybrid-dynamical model based on pulse-coupled oscillators for decentralized heading control in mobile robots while accounting for the constraint on the rate of heading change. The pulse-coupled oscillator model is effective in coordinating the phase of oscillator networks and hence is promising for robotic heading coordination given that both phase and heading evolve on the same one-dimensional torus. However, existing pulse-coupled oscillator results require the phase adjustment to be instantaneous, which cannot hold for robot heading adjustment due to physical limitations. We propose a generalization to the standard pulse-coupled oscillator model to allow for the phase to adjust at a finite rate, yet still have the oscillator network converge to the desired state, making our approach applicable to robotic heading coordination under rate constraints. We provide rigorous mathematical proof for the achievement of both synchronized and desynchronized heading relationships, and experimentally verify the results using extensive tests on a multi-robot platform.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Nearly all existing results on pulse-coupled oscillators require this condition to achieve desynchronization among all oscillators. Relaxing this condition necessitates additional limitations to other aspects of the network, such as initial state [33].…”

Section: Desynchronization With Heading Rate Constraintmentioning

confidence: 99%

Decentralized Heading Control With Rate Constraints Using Pulse-Coupled Oscillators

Anglea

Wang

2020

IEEE Trans. Control Netw. Syst.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This means that the real clock's time information differs from that of a reference clock. However, until now, the identical clock with a same and non-drifting frequency is still used for studying the PCO synchronisation in WSNs [11], [12], [13], [14].…”

Section: A Related Workmentioning

confidence: 99%

“…In the literature (e.g. [11] - [14], [23]), once the scheduling of Syncs is achieved, N WSN nodes send the control traffic (i.e. Sync packets) with interval space T /N during each time synchronisation cycle T .…”

Section: A Related Workmentioning

confidence: 99%

Proportional–Integral Synchronization for Nonidentical Wireless Packet-Coupled Oscillators With Delays

Zong

Dai

2021

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

Precise timing among wireless sensor nodes is a key enabling technology for time-sensitive industrial Wireless Sensor Networks (WSNs). However, the accuracy of timing is degraded by manufacturing tolerance, ageing of crystal oscillators, and communication delays. This paper develops a framework of Packet-Coupled Oscillators (PkCOs) to characterise the dynamics of communication and time synchronisation of clocks in WSNs. The nonidentical clock is derived to describe the embedded clock's behaviour accurately. A Proportional-Integral (PI) packet coupling scheme is proposed for synchronising networked embedded clocks, while, scheduling wireless Sync packets to different slots for transmission. It also possesses the feature of automatically eliminating the effects of unknown processing delay, which further improves the synchronisation performance. The rigorous theoretical analysis of PI-based PkCOs is presented via studying a closed-loop time synchronisation system. The performance of PI-based PkCOs is evaluated on a hardware testbed of IEEE 802.15.4 WSN. The experimental results show that the precision of the proportional-integral PkCOs protocol is as high as 60µs (i.e. 2 ticks) for 32.768kHz crystal oscillator-based clocks. Index Terms-Time synchronisation, packet-coupled oscillators, wireless sensor networks. I. INTRODUCTIONN Owadays, with the ever-growing developments in microelectro-mechanical systems (MEMS) technology, wireless communication and digital electronics, the manufacturing of low-cost and low-power tiny sensor nodes becomes feasible. These sensor nodes are usually deployed in an area to form a network, which is called the Wireless Sensor Network (WSN), in order to monitor and collect environmental information, and realise different applications. In WSNs, thanks to its tradeoff between high-quality signal accuracy and cost, the crystal oscillator is widely chosen as the clock source [1]. However, it fails to produce the same frequency, owing to internal factors (e.g. manufacturing tolerance [2]) and external environmental conditions, such as temperature [3] and supply voltage, and a common sense of timing does not exist in the network without a management protocol. As a result, a Time Synchronisation Manuscript

show abstract

“…The non-biologically inspired network systems use the TDMA protocol and begin during the correspondence time frame to refresh the data of WSN [88]. In TDMA, the transfer speed is approved for the client for a brief time frame as it were.…”

Section: B Energy Efficient In Tdmamentioning

confidence: 99%

Firefly-Inspired Time Synchronization Mechanism for Self-Organizing Energy-Efficient Wireless Sensor Networks: A Survey

2019

View full text Add to dashboard Cite

Perceptions of lifelike marvels are viewed as the best data source of unconstrained synchronization. Such synchronization is imperative for the best possible coordination of intensity cycles for wireless sensor network (WSN) energy conservation. Fireflies, which have a comparative structure to WSN, utilize the guideline of pulse-Coupled Oscillators (PCOs) for light blaze outflow to pull in mating accomplices. This conduct can be impersonated for the improvement of WSNs and have decentralized energy efficiency conduct. In any case, a fascinating component of WSNs is that the PCO is utilized by the firefly synchronization to pull in mating accomplices; however, it cannot be utilized in genuine sensor networks. This is because of the failure of the sensor nodes to get data packets utilized by the first PCO model because of deafness. Subsequently, energy utilization turns out to be high and a large portion of the data is lost. For most situations, the PCO model is not appropriate for sensor networks because of high packet collision since WSNs cannot bear the cost of transmission and gathering data concurrently. It likewise expands energy utilization because the battery substitution is unthinkable upon the fatigue of a node battery energy strategy. Accordingly, this paper broadly surveys and talks about the algorithms developed to address the difficulties and the systems of incorporating energy-efficient firefly inspired time synchronization over WSNs and the properties of transmission state inside the deafness and packet collision. In particular, it is an exhaustive audit incorporating instrument, points of interest and detriments of past related work inside the transmission state. The paper helps scientists to (1) keep away from deafness that happens in the transmit state in WSNs, (2) prevent packet collision for the time of transmission in WSNs, and (3) increment the data gathering all through the transmission states in WSNs. It additionally features the recommendation of a few appropriate open issues as proposals for future research.

show abstract

Phase Desynchronization: A New Approach and Theory Using Pulse-Based Interaction

Cited by 10 publications

References 19 publications

Decentralized Heading Control With Rate Constraints Using Pulse-Coupled Oscillators

Decentralized Heading Control With Rate Constraints Using Pulse-Coupled Oscillators

Proportional–Integral Synchronization for Nonidentical Wireless Packet-Coupled Oscillators With Delays

Firefly-Inspired Time Synchronization Mechanism for Self-Organizing Energy-Efficient Wireless Sensor Networks: A Survey

Contact Info

Product

Resources

About