Journal ArticleDOI
Probabilistic clock synchronization
TLDR
A probabilistic method is proposed for reading remote clocks in distributed systems subject to unbounded random communication delays and can achieve clock synchronization precisions superior to those attainable by previously published clock synchronization algorithms.Abstract:
A probabilistic method is proposed for reading remote clocks in distributed systems subject to unbounded random communication delays. The method can achieve clock synchronization precisions superior to those attainable by previously published clock synchronization algorithms. Its use is illustrated by presenting a time service which maintains externally (and hence, internally) synchronized clocks in the presence of process, communication and clock failures.read more
Citations
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Proceedings ArticleDOI
Network Time Connectivity for Wireless Networks
Baofeng Zhou,Mehmet C. Vuran +1 more
TL;DR: This is the first paper that incorporates stochastic geometry and percolation theory to study the performance of network-level synchronization and a probabilistic synchronization model is developed for pre- synchronization and post-synchronization scenarios to evaluate synchronization performance.
Journal ArticleDOI
Real-Time performance evaluation for flooding and recursive time synchronization protocols over arduino and XBee
TL;DR: This paper presents performance evaluation of two state-of-the-art time synchronization protocols, namely, Flooding Time Synchronization Protocol and Recursive Time Syn chronology Protocol, which make use of broadcast and peer-to-peer mechanisms.
Journal ArticleDOI
K. h. kim et al.
Kwang-Hae (Kane) Kim,Jing Qian,Zhen Zhang,Qian Zhou,Kyung-Deok Moon,Jun-Hee Park,Kwang-Roh Park,Doo-Hyun Kim +7 more
TL;DR: A new reliable real-time messaging scheme called the Delay-Bounded Reliable Messaging Scheme (DB-RMS) is presented that is aimed at meeting such requirements and built on top of the User Datagram Protocol sub-layer.
References
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Journal ArticleDOI
Clock Synchronization in Distributed Real-Time Systems
TL;DR: Depending on the types and number of tolerated faults, this paper presents upper bounds on the achievable synchronization accuracy for external and internal synchronization in a distributed real-time system.
Journal ArticleDOI
Synchronizing clocks in the presence of faults
TL;DR: Three algorithms for maintaining clock synchrony in a distributed multiprocess system where each process has its own clock work in the presence of arbitrary clock or process failures, including “two-faced clocks” that present different values to different processes.
Journal ArticleDOI
Optimal clock synchronization
T. K. Srikanth,Sam Toueg +1 more
TL;DR: This is the first known solution that achieves optimal accuracy—the accuracy of synchronized clocks (with respect to real time) is as good as that specified for the underlying hardware clocks.
Proceedings ArticleDOI
A new fault-tolerant algorithm for clock synchronization
Jennifer Lundelius,Nancy Lynch +1 more
TL;DR: A new fault-tolerant algorithm for solving a variant of Lamport's clock synchronization problem for a system of distributed processes that communicate by sending messages, which solves the problem of maintaining closely synchronized local times, assuming that processes' local times are closely synchronized initially.
Journal ArticleDOI
A new fault-tolerant algorithm for clock synchronization
Jennifer L. Welch,Nancy Lynch +1 more
TL;DR: A new fault-tolerant algorithm for solving a variant of Lamport's clock synchronization problem for a system of distributed processes that communicate by sending messages that maintains synchronization to within a small constant, whose magnitude depends upon the rate of clock drift, the message delivery time and its uncertainty.