A buffer level clock recovery based on least mean squares in PTN

Author

Shuai, Lv ; Yueming, Lu ; Yuefeng, Ji

Author_Institution

Key Lab. of IPOC, Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2009

fDate

18-20 Oct. 2009

Firstpage

71

Lastpage

74

Abstract

Packet transport network (PTN) supports multiple services, including legacy TDM service. Clock recovery mechanism is essential technology for TDM over packet networks. As the buffer level clock recovery method in PTN is highly sensitive to the packet delay variation (PDV), a buffer level clock recovery based on least mean squares (LBL) is proposed. Simulation results show that LBL can effectively remove the negative contribution of packet delay jitter and provide more accurate clock recovery at the destination than traditional scheme.

Keywords

jitter; least mean squares methods; packet switching; synchronisation; telecommunication traffic; LBL mechanism; LMS algorithm; PDV; PTN; buffer level clock recovery mechanism; least mean squares algorithm; legacy TDM traffic service; packet delay jitter; packet delay variation; packet transport network; Clocks; Delay; Frequency estimation; Intelligent networks; Jitter; Laboratories; Least squares approximation; Telecommunication traffic; Time division multiplexing; Timing; Least Mean Squares; PTN; buffer; clock recovery;

fLanguage

English

Publisher

ieee

Conference_Titel

Broadband Network & Multimedia Technology, 2009. IC-BNMT '09. 2nd IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4590-5

Electronic_ISBN

978-1-4244-4591-2

Type

conf

DOI

10.1109/ICBNMT.2009.5347827

Filename

5347827