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Journal article 305 views

Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams

Kyeong Soo Kim, Joseph Kim

IEEE Communications Letters, Volume: 17, Issue: 7, Pages: 1455 - 1458

Swansea University Author: Joseph Kim

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DOI (Published version): 10.1109/LCOMM.2013.052413.130827

Abstract

In this work, we consider the most general case of source clock frequency recovery (SCFR) in packet networks, i.e., asynchronous SCFR through aperiodic packet streams, where there is neither a common reference clock nor any relation between packet generation intervals and a source clock frequency. W...

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Published in: IEEE Communications Letters
Published: 2013
URI: https://cronfa.swan.ac.uk/Record/cronfa17104
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first_indexed 2014-01-31T03:04:24Z
last_indexed 2018-02-09T04:50:25Z
id cronfa17104
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spelling 2014-03-24T09:25:27.9415884 v2 17104 2014-01-30 Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams 28df2d8e401d3e36b6da4a4124049742 Joseph Kim Joseph Kim true false 2014-01-30 In this work, we consider the most general case of source clock frequency recovery (SCFR) in packet networks, i.e., asynchronous SCFR through aperiodic packet streams, where there is neither a common reference clock nor any relation between packet generation intervals and a source clock frequency. We formulate the problem of asynchronous SCFR with timestamps as a linear case of regression through the origin (RTO) and propose two schemes, one based on recursive least squares (RLS) method and the other based on simple heuristics of cumulative ratio of interarrival and interdeparture times, which provide better estimates of the source clock frequency with faster convergence than conventional phase-locked loop (PLL)-based schemes. Journal Article IEEE Communications Letters 17 7 1455 1458 Source clock frequency recovery, linear regression, least squares, cumulative ratio, packet jitter. 31 7 2013 2013-07-31 10.1109/LCOMM.2013.052413.130827 COLLEGE NANME COLLEGE CODE Swansea University 2014-03-24T09:25:27.9415884 2014-01-30T18:15:43.8344714 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Kyeong Soo Kim 1 Joseph Kim 2
title Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
spellingShingle Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
Joseph Kim
title_short Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
title_full Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
title_fullStr Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
title_full_unstemmed Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
title_sort Asynchronous Source Clock Frequency Recovery through Aperiodic Packet Streams
author_id_str_mv 28df2d8e401d3e36b6da4a4124049742
author_id_fullname_str_mv 28df2d8e401d3e36b6da4a4124049742_***_Joseph Kim
author Joseph Kim
author2 Kyeong Soo Kim
Joseph Kim
format Journal article
container_title IEEE Communications Letters
container_volume 17
container_issue 7
container_start_page 1455
publishDate 2013
institution Swansea University
doi_str_mv 10.1109/LCOMM.2013.052413.130827
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description In this work, we consider the most general case of source clock frequency recovery (SCFR) in packet networks, i.e., asynchronous SCFR through aperiodic packet streams, where there is neither a common reference clock nor any relation between packet generation intervals and a source clock frequency. We formulate the problem of asynchronous SCFR with timestamps as a linear case of regression through the origin (RTO) and propose two schemes, one based on recursive least squares (RLS) method and the other based on simple heuristics of cumulative ratio of interarrival and interdeparture times, which provide better estimates of the source clock frequency with faster convergence than conventional phase-locked loop (PLL)-based schemes.
published_date 2013-07-31T03:19:39Z
_version_ 1763750528291962880
score 11.016235

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