Optimal placement of wavelength converters in WDM networks using particle swarm optimizer

• Main Authors: Choon Fang Teo, Yun Cie Foo, Su Fong Chien, Low, A.L.Y., Venkatesh, B., You, A.H.
• Format: Conference Proceeding
• Language: English
• Subjects: Applied sciences; blocking probability; Conferences; converters placement; Costs; Exact sciences and technology; Information, signal and communications theory; Intelligent networks; Iterative algorithms; Multiplexing; Network topology; Optical fiber communications; Optical telecommunications; Optical wavelength conversion; Particle swarm optimization; particle swarm optimization (PSO); Signal and communications theory; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Tree graphs; Wavelength converters; Wavelength routing; WDM networks
• DOI: 10.1109/ICC.2004.1312793

The introduction of wavelength converters in all-optical networks can reduce the blocking probabilities of calls. The main contribution of this paper is that we introduce a novel search algorithm namely particle swarm optimizer in finding the optimum solution to the converter placement problem. Experiments have been conducted to demonstrate the effectiveness and efficiency of the proposed algorithm. The computed results show that it is more cost effective to introduce additional wavelength channel in a single fiber than placing more wavelength converters.