Power control for OSNR optimization in optical networks: a distributed algorithm via a central cost approach

Author

Pave, Lacra

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

2

fYear

2005

fDate

13-17 March 2005

Firstpage

1095

Abstract

This paper addresses the problem of optical signal-to-noise ratio (OSNR) optimization in optical networks. An analytical OSNR network model is developed for a general multi-link configuration, that includes the contribution of amplified spontaneous emission and crosstalk accumulation. An network OSNR optimization problem is formulated such that all channels maintain a desired individual OSNR level, while input optical power is minimized. An iterative, distributed algorithm for channel power control is proposed, which is shown to converge geometrically to the optimal solution. Convergence is proved for both synchronous and asynchronous operation.

Keywords

crosstalk; distributed algorithms; iterative methods; optical fibre networks; optimisation; power control; superradiance; telecommunication channels; telecommunication links; OSNR; central cost approach; channel power control; crosstalk accumulation; iterative distributed algorithm; multilink configuration; optical network optimization; spontaneous emission amplification; synchronous-asynchronous operation; Analytical models; Cost function; Distributed algorithms; Optical crosstalk; Optical fiber networks; Optical noise; Power control; Signal to noise ratio; Spontaneous emission; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

INFOCOM 2005. 24th Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings IEEE

ISSN

0743-166X

Print_ISBN

0-7803-8968-9

Type

conf

DOI

10.1109/INFCOM.2005.1498337

Filename

1498337