TY - JOUR
T1 - Channel assignment for a metro hub under nonuniform traffic
AU - Leung, Yiu Wing
N1 - Funding Information:
Manuscript received April 17, 2008; revised July 01, 2008. First published August 22, 2008; current version published October 15, 2008. This work was supported by the HKBU FRG Grant. The author is with the Department of Computer Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong (e-mail: [email protected]). Digital Object Identifier 10.1109/LPT.2008.2004688 Fig. 1. Metro WDM network in which each node carries the traffic of many end terminals [12].
PY - 2008/11
Y1 - 2008/11
N2 - We consider a metro wavelength-divisionmultiplexing (WDM) network in which a metro hub connects multiple local networks to a backbone network. In many practical scenarios, the metro WDM network has nonuniform traffic. A metro hub recently studied in the literature can effectively transport nonuniform traffic via nonuniform channel assignment. To realize this feature, it is necessary to assign wavelength channels within the hub to fulfill the given channel requirements while avoiding wavelength conflict. In this letter, we formulate this wavelength assignment problem and propose an efficient method to solve it.
AB - We consider a metro wavelength-divisionmultiplexing (WDM) network in which a metro hub connects multiple local networks to a backbone network. In many practical scenarios, the metro WDM network has nonuniform traffic. A metro hub recently studied in the literature can effectively transport nonuniform traffic via nonuniform channel assignment. To realize this feature, it is necessary to assign wavelength channels within the hub to fulfill the given channel requirements while avoiding wavelength conflict. In this letter, we formulate this wavelength assignment problem and propose an efficient method to solve it.
KW - Channel assignment
KW - Metro hub
KW - Metro wavelength-division-multiplexing (WDM) networks
KW - Wavelength conflict
UR - http://www.scopus.com/inward/record.url?scp=77955075782&partnerID=8YFLogxK
U2 - 10.1109/LPT.2008.2004688
DO - 10.1109/LPT.2008.2004688
M3 - Journal article
AN - SCOPUS:77955075782
SN - 1041-1135
VL - 20
SP - 1787
EP - 1789
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 21
ER -