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Green Precision Time Protocol Router Using Dynamic Frequency Scaling

  • Feng GuoEmail author
  • Mei Song
  • Yifei Wei
  • Luigi Sambolino
  • Pengcheng Liu
  • Xiaojun Wang
  • Martin Collier
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9567)

Abstract

Time is the only reference frame among all the network devices over the Internet. Clock synchronization is crucial, especially in time sensitive networking scenarios that every time stamp matters. The Precise Time Protocol (PTP) standard enables precise clock synchronization in multicast capable networks. With hardware time stamping, the standard provides exceptionally tight clock synchronization with the accuracy within the nanosecond range. For this reason, the PTP enabled routers have been widespread in recent years. However, the performance is traditionally the primary concern in these routers without drawing enough attention on router power consumption. This work builds an energy efficient PTP router using dynamic frequency scaling towards green networking. Results indicate that, when in idle state, the proposed router can significantly reduce up to 16.89 % of the power consumption.

Keywords

Precise time protocol Power consumption Green networking Energy efficiency Dynamic frequency scaling 

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China (61372117), the FP7 ECONET project (No. 258454), the Science Foundation Ireland (SFI) under the International Strategic Cooperation Award Grant Number SFI/13/ISCA/2845 and the China Scholarship Council (CSC). The authors would like to acknowledge our collaborators from Beijing Institute of Technology (BIT) and Hangzhou Dianzi University (HDU) for their contributions on the dynamic frequency scaling module.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Feng Guo
    • 1
    Email author
  • Mei Song
    • 2
  • Yifei Wei
    • 2
  • Luigi Sambolino
    • 3
  • Pengcheng Liu
    • 1
  • Xiaojun Wang
    • 1
  • Martin Collier
    • 1
  1. 1.School of Electronic EngineeringDublin City UniversityDublin 9Ireland
  2. 2.School of Electronic EngineeringBeijing University of Posts and TelecommunicationsBeijingPeople’s Republic of China
  3. 3.DITENUniversity of GenoaGenoaItaly

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