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
More filters
Journal ArticleDOI
Using full message exchange for probabilistic clock synchronization (extended abstract)
TL;DR: A new solution to the external clock synchronization problem, based on two works, is presented and a new approach for reading remote clocks is proposed and observed in the context of the protocol.
Journal ArticleDOI
Implementation of a Scenario Editing and Practicing System Based on XML
TL;DR: A syntax-directed XML editor designed for writing XML scripts easily and a system that help actor/actresses practice plays together with multi-clients is implemented.
Book ChapterDOI
Local Clock Synchronization Without Transmission Delay Estimation of Control Messages in Wireless Sensor Networks
Ayako Arao,Hiroaki Higaki +1 more
TL;DR: This paper proposes a novel method to estimate the relative drift and offset between local clocks of the neighbor wireless sensor nodes by using observation records of the commonly observed events by neighbor wireless Sensor nodes.
Posted Content
Algorithms for Timed Consistency Models.
TL;DR: This paper argues that it is possible to give guarantees on the timely consistency of an operation, and suggests the respective algorithms and protocols capable of producing such comprehensive Timed Consistency, as conceptually proposed by Torres-Rojas et al.
References
More filters
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.