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Journal of Optical Communications

Editor-in-Chief: Kersten, Ralf Th.

Editorial Board: Aggarwal, Ishwar / Amann, M.C. / Artiglia, Massimo / Ballato, John / Elmirghani, J.M.H. / Fechner, Rainer / Kanamori, Hiroo / Lösch, Kurt / Papuchon, Michel


CiteScore 2018: 0.51

SCImago Journal Rank (SJR) 2018: 0.157
Source Normalized Impact per Paper (SNIP) 2018: 0.281

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2191-6322
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Load and Link Aware Protection Switching Technique for WDM Networks

T. Ravi Prakash Rao / V. Malleswara Rao
Published Online: 2018-10-19 | DOI: https://doi.org/10.1515/joc-2018-0090

Abstract

Providing reliable connection-oriented services in wavelength division multiplexing (WDM) networks becomes challenging because of bad channel quality and overload. Most of the existing works have not considered node failures and congestion which are the essential characteristics for survivable routing. In this paper, a load and link aware protection switching technique for survivable routing in WDM networks is proposed. The technique estimates k-shortest paths for a connection request. Based on four different path possibilities, it provides the best path as connection path in terms of bandwidth. For establishing the primary path, the least virtual hop first routing algorithm is used. If the source node receives either failure or congestion warning message from the intermediate nodes, it triggers the load balanced rerouting algorithm for establishing the backup path. The proposed technique is simulated in NS-2, and the simulation results prove the efficiency of the scheme.

Keywords: WDM; link aware; switching; IMG; ROADM

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About the article

Received: 2018-05-28

Accepted: 2018-09-11

Published Online: 2018-10-19


Citation Information: Journal of Optical Communications, ISSN (Online) 2191-6322, ISSN (Print) 0173-4911, DOI: https://doi.org/10.1515/joc-2018-0090.

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