Avoiding adjacent channel interference in static RWA

Author

Manousakis, K. ; Christodoulopoulos, K. ; Varvarigos, E.

Author_Institution

Comput. Eng. & Inf. Dept., Univ. of Patras, Patras

fYear

2008

fDate

25-25 July 2008

Firstpage

552

Lastpage

556

Abstract

We design and implement an algorithm for solving the static RWA problem based on an LP relaxation formulation. This formulation is capable of providing integer optimal solutions despite the absence of integrality constraints for a large subset of RWA input instances. In static RWA there is no a-priori knowledge of the channels usage and the interference among them cannot be avoided once the solution has been found. To take into consideration adjacent channel interference, we extend our formulation and model the interference by a set of analytical formulas as additional constraints on RWA.

Keywords

adjacent channel interference; linear programming; optical fibre networks; telecommunication network routing; telecommunication traffic; adjacent channel interference; linear programming relaxation; offline traffic; routing-and-wavelength assignment; static RWA problem; Interchannel interference; Interference constraints; Optical fiber communication; Optical fiber networks; Telecommunication traffic; Traffic control; WDM networks; Wavelength assignment; Wavelength division multiplexing; Wavelength routing; LP relaxation; Routing and Wavelength Assignment; adjacent channel interference; offline traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, Networks and Digital Signal Processing, 2008. CNSDSP 2008. 6th International Symposium on

Conference_Location

Graz

Print_ISBN

978-1-4244-1875-6

Electronic_ISBN

978-1-4244-1876-3

Type

conf

DOI

10.1109/CSNDSP.2008.4610786

Filename

4610786