Contention avoidance scheme in QoS-based data intensive all-optical networks

Author

Lianxing, Hou ; Yueming, Lu ; Junhua, Wang ; Yuefeng, Ji ; Yiqiang, Hua ; YongMei, Sun

Author_Institution

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

fYear

2009

fDate

18-20 Oct. 2009

Firstpage

361

Lastpage

364

Abstract

In this paper, a new contention avoidance scheme called WLC (wavelength-weight Limited Constraint) has been proposed to extend a Path Computation Element (PCE) for lightpath establishment in QoS-based data intensive all-optical networks. WLC assigns a wavelength-weight to denote the concurrent reservation probability and then PCE could select several preferable wavelengths according to the weight for source node. It will block the new request step by step according to QoS level when the weight overflows. The experimental results show that WLC based on QoS level performs better in total blocking than the others under various traffic loads.

Keywords

optical fibre networks; quality of service; telecommunication congestion control; telecommunication traffic; wavelength division multiplexing; Path Computation Element; QoS; concurrent reservation probability; contention avoidance scheme; data intensive all-optical networks; source node weight; traffic loads; wavelength-weight limited constraint; All-optical networks; Computer networks; High speed optical techniques; Intelligent networks; Optical fiber networks; Sun; Telecommunication computing; Telecommunication traffic; Wavelength assignment; Wavelength division multiplexing; PCE; QoS; contention avoidance; data intensive;

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.2009.5348507

Filename

5348507