2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)最新文献

Insitu determination of the fiber delay coefficient in time-dissemination networks 时间传播网络中光纤延迟系数的原位测定

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886632

P. Jansweijer, H. Peek

引用次数: 1

[Copyright notice] (版权)

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ispcs.2019.8886629

引用次数: 0

Securing Unprotected NTP Implementations Using an NTS Daemon 使用NTS守护进程保护未受保护的NTP实现

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886645

Martin Langer, Thomas Behn, R. Bermbach

引用次数: 1

ISPCS 2019 Author Index ISPCS 2019作者索引

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ispcs.2019.8886630

引用次数: 0

Guards and Watchdogs in One-Way Synchronization with Delay-Related Authentication Mechanisms 具有延迟相关认证机制的单向同步中的守卫和看门狗

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886633

Martin Langer, K. Teichel, Kai Heine, D. Sibold, R. Bermbach

引用次数: 2

Test Results of IEEE 1588v2 Network Synchronization Holdover Performance using Various Types of Reference Oscillators 基于不同类型参考振荡器的IEEE 1588v2网络同步保持性能测试结果

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886634

R. M. Kaminsky

{"title":"Test Results of IEEE 1588v2 Network Synchronization Holdover Performance using Various Types of Reference Oscillators","authors":"R. M. Kaminsky","doi":"10.1109/ISPCS.2019.8886634","DOIUrl":"https://doi.org/10.1109/ISPCS.2019.8886634","url":null,"abstract":"This paper explores holdover in an IEEE 1588v2 application. Lab measurements were taken on a reference design configured as a telecom boundary clock (T-BC) comparing the short- and long-term holdover performance of the node when using a TCXO, OCXO, and age-compensated DOCXO, as its reference oscillator. Measurements were taken both with, and without the assistance of a physical layer clock. The results show that when a physical layer clock (e.g. SyncE) is provided, the node meets the ITU-T Recommendation (G.8273.2) [1] for short-term holdover. For this paper, long-term holdover (24-hour) performance is based on the end-to-end LTE-TDD small cell mobile network requirements. When a physical layer clock is provided, the long-term holdover performance is highly dependent on the average drift rate of the PTP clock at the time when this clock is lost and much less dependent on the stability of the local reference oscillator. However, for long-term holdover, when a physical layer clock is not provided, the type of reference oscillator used becomes extremely important and only by employing an age-compensated oscillator was the 24-hour phase error requirement successfully achieved.","PeriodicalId":193584,"journal":{"name":"2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122196484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Exploiting Smartphone Peripherals for Precise Time Synchronization 利用智能手机外围设备实现精确的时间同步

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886639

S. Sandha, Joseph Noor, F. Anwar, M. Srivastava

{"title":"Exploiting Smartphone Peripherals for Precise Time Synchronization","authors":"S. Sandha, Joseph Noor, F. Anwar, M. Srivastava","doi":"10.1109/ISPCS.2019.8886639","DOIUrl":"https://doi.org/10.1109/ISPCS.2019.8886639","url":null,"abstract":"Achieving precise time synchronization across a collection of smartphones poses unique challenges due to their limited hardware support, exclusively wireless networking interface, and restricted timing stack control. Given the ubiquity and popularity of smartphones in modern distributed applications, clock discrepancies often lead to degraded application performance. In this paper, we present and evaluate alternative approaches to attain precise time synchronization by leveraging the various peripherals available on modern smartphone devices. Our evaluation across Android smartphones typically attains synchronization accuracy within (i) 200μs using audio, (ii) 3000μs using Bluetooth Low Energy, and (iii) 1000μs using Wi-Fi. Under certain conditions, we show that smartphones synchronized using one peripheral can accurately timestamp and generate synchronous events over other peripherals. The provided guide and accompanying open-source implementations offer developers a means to select the appropriate time synchronization technique when building distributed applications.","PeriodicalId":193584,"journal":{"name":"2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115616267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

A timing impairment module for electrical synchrometrology 一种用于电气同步测量的时序损伤模块

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886638

D. Anand, C. Freiheit, M. Weiss, K. Shenoi, H. Ossareh

引用次数: 0

Secure precision time protocol in packet switched networks 分组交换网络中的安全精确时间协议

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886643

Prasanth Kemparaj, S. S. Kumar

引用次数: 5

ARTT: A Scalable Approach for Monitoring the Quality of Time in Distributed Systems 分布式系统中监控时间质量的可扩展方法

2019 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS) Pub Date : 2019-09-01 DOI: 10.1109/ISPCS.2019.8886640

Brandon Smith, Bob Noseworthy, R. Bartos

引用次数: 1