Reducing restoration blocking in WDM optical networks

Author

Liu, Zhi ; Ruan, Lu

Author_Institution

Dept. of Comput. Sci., Iowa State Univ., Ames, IA, USA

fYear

2005

fDate

17-19 Oct. 2005

Firstpage

323

Lastpage

330

Abstract

In this paper, we study the problem of reducing restoration blocking probability in WDM optical networks. First, we present two reasons for restoration blocking: primary holding and mutual competition. Next, we propose two dynamic routing and wavelength assignment algorithms to address primary holding and give three heuristics to address mutual competition. Simulation results show that our algorithms can effectively reduce the restoration blocking probability without sacrificing working blocking probability.

Keywords

channel allocation; heuristic programming; optical fibre networks; probability; telecommunication network routing; wavelength division multiplexing; WDM optical network; dynamic routing; heuristic programming; mutual competition; primary holding; restoration blocking probability; wavelength assignment algorithm; wavelength division multiplexing; Computer science; Intelligent networks; Optical fiber networks; Protection; Protocols; Spine; WDM networks; Wavelength assignment; Wavelength division multiplexing; Wavelength routing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Communications and Networks, 2005. ICCCN 2005. Proceedings. 14th International Conference on

ISSN

1095-2055

Print_ISBN

0-7803-9428-3

Type

conf

DOI

10.1109/ICCCN.2005.1523877

Filename

1523877