Optimization of Amplifier Placements in Switch-Based Optical Networks


Autoria(s): Zong, Ling; Ramamurthy, Byrav
Data(s)

01/01/2001

Resumo

Wavelength division multiplexing (WDM) offers a solution to the problem of exploiting the large bandwidth on optical links; it is the current favorite multiplexing technology for optical communication networks. Due to the high cost of an optical amplifier, it is desirable to strategically place the amplifiers throughout the network in a way that guarantees that all the signals are adequately amplified while minimizing the total number amplifiers being used. Previous studies all consider a star-based network. This paper demonstrates an original approach for solving the problem in switch-based WDM optical network assuming the traffic matrix is always the permutation of the nodes. First we formulate the problem by choosing typical permutations which can maximize traffic load on individual links; then a GA (Genetic Algorithm) is used to search for feasible amplifier placements. Finally, by setting up all the lightpaths without violating the power constaints we confirm the feasibility of the solution.

Formato

application/pdf

Identificador

http://digitalcommons.unl.edu/cseconfwork/119

http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1120&context=cseconfwork

Publicador

DigitalCommons@University of Nebraska - Lincoln

Fonte

CSE Conference and Workshop Papers

Palavras-Chave #Computer Sciences
Tipo

text