NDLI: Clock synchronization in wireless distributed embedded applications

Content Provider	IEEE Xplore Digital Library
Author	Hong, Y.S. No, J.H.
Copyright Year	2003
Description	Author affiliation: Dongguk Univ., Seoul, South Korea (Hong, Y.S.; No, J.H.)
Abstract	Keeping distributed clocks closely synchronized is one of the basic requirements in wireless embedded applications. In the context of wireless applications, a clock synchronization protocol must tolerate message losses and should have a low communication overhead. The purpose of this paper is to present a clock synchronization protocol for distributed embedded systems in wireless environments. Our protocol adopts the master/slave structure based on a time transmission protocol and uses a drift correction algorithm for clock synchronization. The master node broadcasts synchronization messages through access point. The slave node estimates the master clock using the time transmission protocol and adjusts its virtual clock based on the continuous clock synchronization. Another advantage of the proposed protocol is that it uses a linear number of messages by transmitting one synchronization message in each resynchronization round and tolerates message losses. The protocol is implemented and tested in a Windows NT and a WinCE. Its measurements indicate that the PC node and PDAs can be kept synchronized within the deviation bound of 8 milliseconds.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Distrib. Process. Commun. Res. Lab., Japan
Starting Page	101
Ending Page	104
File Size	298144
Page Count	4
File Format	PDF
ISBN	0769519377
DOI	10.1109/WSTFES.2003.1201371
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-15
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Clocks Synchronization Access protocols Wireless application protocol Master-slave Context Embedded system Broadcasting Propagation losses Testing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in