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

Abstract

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

An Efficient Scheme on Adaptable Priority-Based Routing and Wavelength Assignment Algorithm for Enhanced Quality of Service

“…By varying the values of wavelength, traffic load and the connection request, the performance measure would be designed. This research work focusses on most of the possible scenarios of prioritizing the link requests to improve the system performance and in order to achieve, requested lightpath is categorized in several groups based on priority which depends on number of hops count a request requires and capacity of the traffic [4][5]. This research proposed adaptable priority-based RWA algorithm to minimize the blocking ratio, average setup time in the designed topology.…”