Title :
A collision-aware wavelength assignment scheme for GMPLS based WDM networks
Author :
Wang, Lei ; Zhang, Jie ; Gao, Guanjun ; Liu, Yongjun ; Chen, Xiuzhong ; Zhao, Yongli ; Yao, Yu ; Gu, Wanyi
Author_Institution :
Key Lab. of Opt. Commun. & Lightwave Technol., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
In this paper, a new collision-aware wavelength assignment scheme called CAFF (collision-aware first fit) has been proposed for GMPLS based transparent WDM networks. CAFF assign a weight to each wavelength of the network links, which denotes the concurrent reservation probability. So the destination can select a wavelength with less collision probability according to the weight. Simulations are conducted to compare CAFF with a few existing schemes. Numerical results show that CAFF performs better in total blocking than the others under various traffic condition.
Keywords :
multiprotocol label switching; telecommunication links; wavelength assignment; wavelength division multiplexing; GMPLS; WDM networks; collision-aware first fit; collision-aware wavelength assignment scheme; concurrent reservation probability; network links; Automatic control; Communication system traffic control; Mathematical model; Radio frequency; Road accidents; Switches; Traffic control; WDM networks; Wavelength assignment; Wavelength division multiplexing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080487
