An Attack-Resilient Pulse-Based Synchronization Strategy for General Connected Topologies

Wang, Zhenqian; Wang, Yongqiang

doi:10.1109/tac.2020.2977913

Cited by 19 publications

(7 citation statements)

References 42 publications

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“…For example, the PCO-based strategies have been found to be highly successful in achieving motion coordination in robot swarms ( 32–34 ). Since only simple and content-free pulses are sent between agents, PCO-based synchronization is naturally resilient to message corruption in communications and incurs little communication overhead, leading to improved network robustness and reduced communication latency ( 35 , 36 ). These advantages make PCO-based synchronization particularly appealing for the coordination in engineering networks such as robot swarms and vehicle fleets that are subject to stringent reliability and real-time constraints.…”

Section: Introductionmentioning

confidence: 99%

Optimal synchronization in pulse-coupled oscillator networks using reinforcement learning

et al. 2023

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Spontaneous synchronization is ubiquitous in natural and man-made systems. It underlies emergent behaviors such as neuronal response modulation and is fundamental to the coordination of robot swarms and autonomous vehicle fleets. Due to its simplicity and physical interpretability, pulse-coupled oscillators has emerged as one of the standard models for synchronization. However, existing analytical results for this model assume ideal conditions, including homogeneous oscillator frequencies and negligible coupling delays, as well as strict requirements on the initial phase distribution and the network topology. Using reinforcement learning, we obtain an optimal pulse-interaction mechanism (encoded in phase response function) that optimizes the probability of synchronization even in the presence of non-ideal conditions. For small oscillator heterogeneities and propagation delays, we propose a heuristic formula for highly effective phase response functions that can be applied to general networks and unrestricted initial phase distributions. This allows us to bypass the need to relearn the phase response function for every new network.

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Section: Introductionmentioning

confidence: 99%

Optimal synchronization in pulse-coupled oscillator networks using reinforcement learning

et al. 2023

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“…Thus, these schemes might be vulnerable when compromised nodes act maliciously to corrupt the phase synchronization of PCO. The present research on the attack-resilient synchronization algorithms in the PCOs model considers the synchronizability of PCOs in the presence of Byzantine attacks [14][15][16] . Byzantine attack is the attack performed by a fully trusted node that's turned rogue and will passed all the authentication and verification phases.…”

Section: Related Workmentioning

confidence: 99%

Impacts of Denial-of-Service Attack on Energy Efficiency Pulse Coupled Oscillator

Hassan

Samir²,

Hanapi³

2023

Baghdad Sci.J

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The Pulse Coupled Oscillator (PCO) has attracted substantial attention and widely used in wireless sensor networks (WSNs), where it utilizes firefly synchronization to attract mating partners, similar to artificial occurrences that mimic natural phenomena. However, the PCO model might not be applicable for simultaneous transmission and data reception because of energy constraints. Thus, an energy-efficient pulse coupled oscillator (EEPCO) has been proposed, which employs the self-organizing method by combining biologically and non-biologically inspired network systems and has proven to reduce the transmission delay and energy consumption of sensor nodes. However, the EEPCO method has only been experimented in attack-free networks without considering the security elements which may cause malfunctioning and cyber-attacks. This study extended the experiments by testing the method in the presence of denial-of-service (DoS) attacks to investigate the efficiency of EEPCO in attack-based networks. The result shows EEPCO has poor performance in the presence of DoS attacks in terms of data gathering and energy efficiency, which then concludes that the EEPCO is vulnerable in attack-based networks.

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“…In time synchronisation, many theoretical studies have been proposed [e.g. the Pulse-Coupled Oscillators (PCO) model and its variants [16], [17]], but with assumptions, such as identical and non-drifting frequency. However, these assumptions cannot be met in the practice of wireless systems.…”

Section: A Related Workmentioning

confidence: 99%

Synchronization of Packet Coupled Low-Accuracy RC Oscillator Clocks for Wireless Networks

Zong

Dai

Canyelles-Pericas

et al. 2023

IEEE Trans. Wireless Commun.

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Time-sensitive wireless applications have strict requirements on real-time data transmission and control operation. Even though time synchronisation has been extensively studied for providing a common timing among distributed wireless nodes, there still exists a lack of research for low-accuracy and large-drifting clocks, such as internal Resistor-Capacitor (RC) oscillator clocks with around 4 × 10 5 parts per million (ppm), which are widely used in wearable sensor systems. This paper proposes a Proportional Packet-Coupled Oscillators (P-PkCOs) protocol for synchronising poor-performing internal RC oscillator clocks with high disturbances in the single-cluster wireless network. The behaviour of such a drifting clock is described as a non-identical and time-varying model. To achieve time synchronisation on low-accuracy internal RC oscillator clocks, a packet-coupled synchronisation scheme is proposed for adjusting drifting clocks via the proportional control-based correction scheme. The RC oscillator frequency in an embedded system cannot be corrected, and this work utilises the clock threshold adjustment as a substitute for frequency correction. The stability region of controller parameters is given to guarantee that the clock threshold approaches a value, which is jointly determined by the nominal threshold and the corresponding clock frequency. We also propose a linear matrix inequality condition to prove that the P-PkCOs performance is robust against the large clock disturbances. We demonstrate the implementation of P-PkCOs. The experimental results show that P-PkCOs can achieve and maintain robust time synchronisation on the internal RC oscillator clocks.

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An Attack-Resilient Pulse-Based Synchronization Strategy for General Connected Topologies

Cited by 19 publications

References 42 publications

Optimal synchronization in pulse-coupled oscillator networks using reinforcement learning

Optimal synchronization in pulse-coupled oscillator networks using reinforcement learning

Impacts of Denial-of-Service Attack on Energy Efficiency Pulse Coupled Oscillator

Synchronization of Packet Coupled Low-Accuracy RC Oscillator Clocks for Wireless Networks

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