Titre du document / Document title

Wavelength assignment algorithms in SONET/WDM optical ring networks

Auteur(s) / Author(s)

GUANGYU ZHU ⁽¹⁾ ; FEI YUAN ⁽¹⁾ ; GHAFOURI-SHIRAZ H. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ School of Electrical and Electronic Engineering, South Spine, Block S1, Nanyang Technological University, Nanyang Avenue, Singapore 639798, SINGAPOUR

Résumé / Abstract

The terminal equipment costs associated with electronic multiplexing can comprise of a dominating percentage of the total network costs in today's backbone wavelength-division-multiplexed (WDM) synchronous optical network (SONET) ring networks. The deployment of wavelength add-drop multiplexers (WADM) allows certain wavelengths to optically bypass the nodes without being electronically terminated, thus can effectively reduce the total equipment costs if connections and channels are appropriately assigned in traffic grooming. This paper presents a series of wavelength assignment algorithms with the objective to optimize the number of required wavelengths and SONET add-drop multiplexers in both unidirectional and bi-directional rings under an arbitrary grooming factor. In our analysis, we have considered both uniform and non-uniform all-to-all network traffic. As a simple model for realistic traffic pattern, a special case of non-uniform traffic, distance-dependent traffic is analyzed in detail. Significant ADM savings are reported for different traffic scenarios using our proposed algorithms.

Revue / Journal Title

Journal of optical communications   ISSN 0173-4911   CODEN JOCODG 

Source / Source

2002, vol. 23, n^o3, pp. 100-106 (10 ref.)

Langue / Language

Anglais

Editeur / Publisher

Schiele & Schön, Berlin, ALLEMAGNE  (1980) (Revue)

Mots-clés anglais / English Keywords

Optical add drop multiplexer ; Optimization ; Teletraffic ; Algorithm ; Synchronous transmission ; Optical fiber communication ; Wavelength division multiplexing ; Ring network ; Fiber optic networks ; Frequency allocation ;

Mots-clés français / French Keywords

Multiplexeur optique insertion extraction ; Optimisation ; Télétrafic ; Algorithme ; Transmission synchrone ; Communication fibre optique ; Multiplexage longueur onde ; Réseau anneau ; Réseau fibre optique ; Allocation fréquence ;

Mots-clés espagnols / Spanish Keywords

Optimización ; Teletráfico ; Algoritmo ; Transmisión sincrónica ; Multiplaje longitud onda ; Red anillo ; Asignación frecuencia ;

Localisation / Location

INIST-CNRS, Cote INIST : 19222, 35400010174416.0050