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The Scientific World Journal - Volume 2015 2015, Article ID 703480, 8 pages -

Research ArticleDepartment of Computer Science and Engineering, Jay Shriram Group of Institutions, Anna University, Chennai, Avinashipalayam, Tirupur, Tamil Nadu 638660, India

Received 3 June 2015; Accepted 7 July 2015

Academic Editor: Gnana Sheela

Copyright © 2015 S. Rajalakshmi and R. Maguteeswaran. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A hybrid computational intelligent algorithm is proposed by integrating the salient features of two different heuristic techniques to solve a multiconstrained Quality of Service Routing QoSR problem in Mobile Ad Hoc Networks MANETs is presented. The QoSR is always a tricky problem to determine an optimum route that satisfies variety of necessary constraints in a MANET. The problem is also declared as NP-hard due to the nature of constant topology variation of the MANETs. Thus a solution technique that embarks upon the challenges of the QoSR problem is needed to be underpinned. This paper proposes a hybrid algorithm by modifying the Cuckoo Search Algorithm CSA with the new position updating mechanism. This updating mechanism is derived from the differential evolution DE algorithm, where the candidates learn from diversified search regions. Thus the CSA will act as the main search procedure guided by the updating mechanism derived from DE, called tuned CSA TCSA. Numerical simulations on MANETs are performed to demonstrate the effectiveness of the proposed TCSA method by determining an optimum route that satisfies various Quality of Service QoS constraints. The results are compared with some of the existing techniques in the literature; therefore the superiority of the proposed method is established.





Autor: S. Rajalakshmi and R. Maguteeswaran

Fuente: https://www.hindawi.com/



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