Routing, wavelength assignment and spectrum allocation for reconfigurable optical mesh networks having a combination of fixed and Flexible Spectrum ROADM nodes

Author

Nanda Venkata Gopal, D. ; Bhyri, Sai Kishore ; Gowrishankar, R.

fYear

2013

fDate

15-18 Dec. 2013

Firstpage

1

Lastpage

5

Abstract

Next Generation of Optical Networks will witness the advent of Flexible Spectrum/Grid ROADMs. The Pass Band of these Next Generation ROADMs can be varied depending on the spectral width of the incoming signal. With the Pass Band becoming a variable, Spectrum Allocation becomes an added constraint to the currently employed RWA (Routing and Wavelength Assignment) algorithm and hence turns it into a RWSA (Routing, Wavelength and Spectrum Allocation) problem. In reality, the future networks will be a mix of “Fixed Spectrum” and “Flexible Spectrum” ROADM nodes. Considering this fact, the paper presents a novel Routing, Wavelength Assignment and Spectrum Allocation (RWSA) algorithm. The proposed algorithm is applied on NSFNET and the results are presented.

Keywords

multiplexing equipment; optical fibre networks; telecommunication network routing; RWSA algorithm; fixed spectrum ROADM nodes; flexible spectrum ROADM nodes; flexible spectrum-grid ROADM; reconfigurable optical add drop multiplexer; reconfigurable optical mesh networks; routing wavelength assignment and spectrum allocation; Bandwidth; Flexible printed circuits; Optical add-drop multiplexers; Optical fiber networks; Optical filters; Resource management; Routing; Flex Spectrum ROADM; Reconfigurable Optical Add Drop Multiplexer(ROADM); Routing; Wavelength Assignment and Spectrum Allocation(RWSA);

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Networks and Telecommuncations Systems (ANTS), 2013 IEEE International Conference on

Conference_Location

Kattankulathur

ISSN

2153-1676

Type

conf

DOI

10.1109/ANTS.2013.6802856

Filename

6802856