NDLI: Implicit network timing synchronization with phase-only updates

Content Provider	IEEE Xplore Digital Library
Author	Venkateswaran, S. Madhow, U.
Copyright Year	2011
Description	Author affiliation: Department of ECE, University of California Santa Barbara, 93106, USA (Venkateswaran, S.; Madhow, U.)
Abstract	Timing synchronization is a critical requirement for implementation of a number of performance-enhancing strategies in mesh networks, including Time Division Multiplexing (TDM) for more efficient resource usage, and sleep scheduling for power efficiency. In this paper, we propose a simple algorithm for overhead-free maintenance of timing synchronization and investigate its scalability with the size of the network. In the proposed scheme, the nodes only use information obtained from the timing of existing communication in the network: each node updates only its clock phase when it receives a packet, depending on the difference between the expected and actual packet arrival times. The uncompensated frequency differences across nodes lead to irreducible phase errors, which we bound by introducing the notion of an averaged system. We use a linear programming formulation to show that these phase errors can grow with the network size, thereby concluding that simple, phase-only adjustments might suffice to maintain synchrony in small networks, but additional frequency adjustments are necessary for larger networks.
Starting Page	1
Ending Page	6
File Size	193060
Page Count	6
File Format	PDF
ISBN	9781424498468
e-ISBN	9781424498482
e-ISBN	9781424498475
DOI	10.1109/CISS.2011.5766244
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network topology Time division multiplexing Nickel Topology Synchronization Clocks
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

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