Improved Connection Establishment of Dynamic Traffic with Queue in WDM Optical Networks
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Proper route selection between source and destination \((s-d)\) connection leads to efficient resource utilization which leads to the availability of resources for future call arrivals. Various choices are available for Routing and Wavelength Assignment (RWA) and every network demands a particular set of RWA to face least call blocking. Call blocking is an important issue in WDM network since it decides the provision of efficient service. In this paper, we have proposed the solution for RWA problem, efficient Wavelength Assignment Technique (WAT) and effect of call queuing in the network. We have studied and compared all sets of RWA over 14 nodes NSF network and found out that our proposed WAT works better in every set. Call blocking is a function of time and a slight change in time shows noticeable effects. We have shown the effect of call contention on WDM network and hence proposed the optimum value of it. Our simulation results for dynamic traffic show that optimal selection of RWA and contention window improve blocking of connections.
KeywordsAdaptive wavelength assignment Blocking performance RWA Wavelength assignment Resource allocation
We acknowledge the thanks and support provided to us by Department of Electronics Engineering of Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
- 1.Murthy, C. S. R., & Gurusamy, M. (2002). WDM optical networks: Concepts, design and algorithms (1st ed.). Upper Saddle River: Pearson Prentice Hall.Google Scholar
- 2.Birman, A. & Kershenbaum, A. (1995). Routing and wavelength assignment methods in single-hop all-optical networks with blocking. In INFOCOM’95 fourteenth annual joint conference of the IEEE computer and communications societies, bringing information to people, proceedings, IEEE (Vol. 2). IEEE.Google Scholar
- 4.Hu, J. Q. & Leida, B. (2004). Traffic grooming, routing and wavelength assignment in optical WDM mesh networks. In Proc. IEEE INFOCOM (Vol. 4, pp. 495–501).Google Scholar
- 6.Betker, A., Gerlach, C., Hlsermann, R., Jger, M., Barry, M., Bodamer, S., Spth, J., Gauger, C., & Khn, M. (2004). Reference transport network scenarios. German Ministry of Education and Research (BMBF), MultiTeraNet project under contract numbers 01 BP 254, 01 BP 256, and 01 BP 289.Google Scholar
- 7.Barry, R. A. & Humblet, P. A. (1995). Models of blocking probability in all-optical networks with and without wavelength changers. In Proc. IEEE INFOCOM95 (Vol. 2, pp. 402–412).Google Scholar
- 8.Tornatore, M., Baruffaldi, A., Zhu, H., Mukherjee, B., & Pattavina, A. (2007). Dynamic traffic grooming of subwavelength connections with known duration. In Proc. IEEE OFC/NOFC07 (Vol. 1, pp. 1–3).Google Scholar
- 11.Ramaswami, R., & Sivarajan, K. (1998). Optical networks: A practical perspective. Burlington: Morgan Kaufmann Publishers.Google Scholar
- 14.Vardakas, J. S., Vassilakis, V. G., & Logothetis, M. D. (2007). Calculating blocking probabilities in single-hop WDM traffic groomed optical networks. In ICTON’07 9th international conference on transparent optical networks, 2007 (Vol. 4). IEEE.Google Scholar
- 16.Maurya, R. K., Thangaraj, J., & Priye, V. (2016). Statistical analysis of blocking probability for dynamic traffic in WDM optical networks based on Erlang B model. In International conference on wireless communications, signal processing and networking (WiSPNET). IEEE.Google Scholar
- 19.Rouskas, G. N., Zhu, Y., & Perros, H. G. (1999). Blocking in wavelength routing networks I: The single path case. In Proc. IEEE INFOCOM99 (Vol. 1, pp. 321–328).Google Scholar
- 21.Zang, H., Jue, J. P., & Mukherjee, B. (2000). A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks. SPIE /BALTZERS Optical Networks Magazine, 1, 47–60.Google Scholar