Adaptive Clock Recovery Mechanism Having Dynamic Frequency Drift and Buffer Level Control in Packet Switched Networks

Author

Bang, Hakjeon ; Choi, Jong-Oh ; Lee, Seong-Ro ; Park, Chang-Soo

Author_Institution

Dept. of Inf. & Commun., Inst. of Sci. & Technol. (GIST), Gwangju, South Korea

Volume

15

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

575

Lastpage

577

Abstract

Adaptive clock recovery is required in order to transmit the synchronous data of conventional time-division multiplexing (TDM) services to another TDM network across an asynchronous packet switched network (PSN). In this paper, we propose an adaptive clock recovery mechanism having dynamic frequency drift, which enables faster response with smaller residual variance, and buffer level control to reduce the required jitter buffer size with no buffer underflow or overflow.

Keywords

jitter; packet switching; synchronisation; PSN; TDM network; TDM services; adaptive clock recovery mechanism; asynchronous packet switched network; buffer level control; buffer overflow; buffer underflow; conventional time-division multiplexing services; dynamic frequency drift; jitter buffer size; packet switched networks; residual variance; synchronous data; Clocks; Frequency control; Frequency estimation; Jitter; Synchronization; Time division multiplexing; Time frequency analysis; Adaptive clock recovery; TDMoIP; jitter buffer; packet switched network (PSN);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.030911.102401

Filename

5738305