A metaheuristic approach for optical network optimization problems

Bhanja, Urmila; Mahapatra, Santanu

doi:10.1016/j.asoc.2012.09.011

Cited by 8 publications

(2 citation statements)

References 17 publications

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“…The summation represents the wavelength availability status of all the established lightpaths. The experiment is carried out for two control mechanisms (with FLC & without FLC), two types of holding times (exponential, pareto) and for various wavelength assignment techniques such as first fit (FF), round robin (RR) and random (R) techniques to estimate different network related QoS parameters [7,8,13,18,19,20]. Both the QoS-FDRWA and QoS-NFDRWA are simulated for eight different network loads i.e.…”

Section: Simulation Results and Analysismentioning

confidence: 99%

“…The minimization of average lightpath length of the proposed QoS-FDRWA with the network loads, consequently reduces the link length or path length dependent linear and nonlinear impairments such as chromatic dispersion (CD), polarized mode dispersion (PMD), four wave mixing (FWM), Switch Crosstalk and amplified spontaneous emission noise (ASE) and hence, improves the quality of transmission in the WDM optical network [17,18,19,20,21]. The average wavelength availability for the proposed QoS-FDRWA is higher as compared to that of QoS-NFDRWA at high network load that signifies the reduction in the average blocking probability for the proposed QoS-FDRWA at higher network load.…”

Section: Discussionmentioning

confidence: 99%

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Dynamic routing and wavelength assignment using fuzzy logic controller in WDM optical networks

Bhanja

Mishra

2015

2015 International Conference on Signal Processing and Communication (ICSC)

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In this paper, a novel Fuzzy logic controller is proposed to solve the quality of service (QoS) aware dynamic routing and wavelength assignment (DRWA) problem for a wavelength division multiplexing (WDM) optical network. This paper proposes a novel quality of service aware Fuzzy logic controlled dynamic routing and wavelength assignment algorithm (QoS-FDRWA), where the minimum cost path is chosen by a Fuzzy Rule Based Inference System (FRBS).The proposed QoS-FDRWA incorporates QoS aware network transmission parameters such as latency, physical length of the link, data packet loss, number of hops, and wavelength availability status in the path. The proposed work integrates the DRWA algorithm with two fuzzy logic controllers (FLCs) to minimize the average blocking probability and average execution time.Keywords-wavelength division multiplexing; fuzzy logic controller; all optical network; quality of service; dynamic routing;wavelength assignment. I.978-1-4799-6761-2/15/$31.00 ©2015 IEEE

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