Abstract
Wavelength routed optical networks have emerged as a technology that can effectively utilize the enormous bandwidth of the optical fiber. Wavelength conversion technology and wavelength converters play an important role in enhancing fiber utilization and in reducing the overall call blocking probability of the network. In this paper, we develop a new analytical model to calculate the average blocking probability in multi-fiber link networks using limited range wavelength conversion. Based on the results obtained, we conclude that the proposed analytical model is simple and yet can effectively analyze the impact of wavelength conversion ranges and number of fibers on network performance. Also a new heuristic approach for placement of wavelength converters to reduce blocking probabilities is explored. Finally, we analyze network performance with the proposed scheme. It can be observed from numerical simulations that limited range converters placed at a few nodes can provide almost the same blocking probability as full range wavelength converters placed at all the nodes. We also show that being equipped with a multi-fiber per-link has the same effect as being equipped with the capability of limited range wavelength conversion. So a multi-fiber per-link network using limited range wavelength conversion has similar blocking performance as a full wavelength convertible network. Since a multi-fiber network using limited range wavelength conversion could use fewer converters than a single-fiber network using limited range wavelength conversion and because wavelength converters are today more expensive than fiber equipment, a multi-fiber network in condition with limited range wavelength conversion is less costly than a single fiber network using only limited range wavelength conversion. Thus, multi-fiber per-link network using limited range wavelength conversion is currently a more practical method for all optical WDM networks. Simulation studies carried out on a 14-node NSFNET, a 10-node CERNET (China Education and Research Network), and a 9-node regular mesh network validate the analysis.
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References
G. Shen et al., Approximate analysis of limited-range wavelength conversion all-optical WDM networks. Computer Communications, vol. 24, no. 5, (May 2001), pp. 949–957.
R. A. Barry, P. A. Humblet, Models of blocking probability in all optical networks with and without wavelength changers, IEEE Journal on Selected Areas of Communication, vol. 14, no. 6, (June 1996), pp. 858–867.
S. Subramaniam, R. A. Barry, Wavelength assignment in fixed routing WDM networks, Proceedings of IEEE ICC'97, vol. 1, Montreal, CA, USA (1997), pp. 406–410.
A. Girard, Routing and Dimensioning in Circuit Switched Networks (Addison Wesley, 1990).
S. K. Bose, Y. N. Singh, N. S. V. B. Raju, B. Popat, Sparse converter placement in WDM networks and their dynamic operation using path metric based algorithms, Proceedings of IEEE ICC'2002, vol. 5, New York, NY, USA (April/May 2002), pp. 2855–2859.
K. C. Lee, V. Li, A wavelength convertible optical network, IEEE/OSA Journal of Lightwave Technology, vol. 11, no. 5/6, (May/June 1993), pp. 962–970.
K. R. Venugopal, M. Achutharam, P. Sreenivasa Kumar, An adaptive algorithm to reduce wavelength conversion and congestion in all optical networks, Proceedings of the International Conference on Advanced Computing, vol. 1, Pune, India (December 1998), pp. 386–393.
K. R. Venugopal, E. E. Rajanand, K. P. S. Kumar, Performance analysis of wavelength converters in WDM wavelength routed optical networks, Proceedings of the IEEE International Conference on High Performance Computing, vol. 1, Chennai, India (December 1998), pp. 239–246.
R. Ramaswani, K. Sivarajan, Optical Networks: A Practical Perspective (Morgan Kaufmann, Los Altos, CA, USA, 1998).
B. Mukherjee, Optical Networks (McGraw-Hill, New York, NY, USA, 1997).
K. R. Vernugopal, E. Rajan, N. Kumar, Impact of wavelength converters in wavelength routed all-optical networks, Computer Communications, vol. 22, no. 3, (February 1999), pp. 244–257.
S. Subramaniam, M. Azizoğlu, A. K. Somani, All optical networks with sparse wavelength conversion, IEEE/ACM Transactions on Networking, vol. 4, no. 9, (August 1996), pp. 544–557.
J. Yates et al., Limited wavelength conversion in all optical networks, Proceedings of IEEE INFOCOM'96, vol. 2, San Francisco, CA, USA (April 1996), pp. 954–961.
S. Subramaniam, M. Azizoglu, A. K. Somani, On the optimal placement of wavelength converters in wavelength routed networks, Proceedings of IEEE INFOCOM'98, vol. 2, San Francisco, CA, USA (April 1998), pp. 893–901.
K. R. Venugopal, M. Shivakumar, P. S. Kumar, A heuristic for placement of limited range wavelength converters in all optical networks, Proceedings of IEEE INFOCOM'99, vol. 2, New York, NY, USA (March 1999), pp. 908–915.
A. S. Arora, S. Subramaniam, Converter placement in wavelength routing mesh topologies, Proceedings of IEEE ICC'00, vol. 3, New Orleans, LA, USA (June 2000), pp. 1282–1288.
R. Ramaswami, G. Sasaki, Multiwavelength optical networks with limited wavelength conversion, Proceedings of IEEE INFOCOM'97, vol. 2, Kobe, Japan (April 1997), pp. 489–498.
T. Tripathi, K. Sivarajan, Computing approximate blocking probabilities in wavelength routed all optical networks with limited range wavelength conversion, Proceedings of IEEE INFOCOM'99, vol. 1, New York, NY, USA (March 1999), pp. 329–336.
S. Thiagarajan, A. K. Somanti, An efficient algorithm for optimal wavelength converter placement on wavelength routed networks with arbitrary topologies, Proceedings of IEEE INFOCOM'99, vol. 2, New York, NY, USA (March 1999), pp. 916–923.
A. Berman, Computing approximate blocking probabilities for a class of all optical networks, IEEE Journal on Selected Areas in Communications, vol. 14, no. 6, (June 1996), pp. 852–857.
H. T. Mouftah, All optical wavelength conversion technologies and applications in DWDM networks, IEEE Communications Magazine, vol. 38, no. 3, (March 2000), pp. 86–92.
G. Xiao, Y. W. Leung, Algorithms for allocating wavelength converters in all optical networks, IEEE/ACM Transactions on Networking, vol. 7, no. 4, (August 1999), pp. 545–557.
S. J. B. Yoo, Wavelength conversion technologies for WDM network applications, IEEE/OSA Journal of Lightwave Technology, vol. 14, no. 6, (June 1996), pp. 955–966.
H. Qin, S. Zhang, L. Zengji, Dynamic routing and wavelength assignment for limited range wavelength conversion, IEEE Communications Letters, vol. 7, no. 3, (March 2003), pp. 136–138.
J. Iness, B. Mukherjee, Sparse wavelength conversion in wavelength routed WDM optical networks, Photonic Network Communications, vol. 1, no. 3, (November 1999), pp. 183–205.
D. Campi, C. Coriasso, Wavelength conversion technologies, Photonic Network Communications, vol. 2, no. 1, (January–March 2000), pp. 85–95.
A. Arora, S. Subramaniam, Wavelength conversion placement in WDM mesh optical networks, Photonic Network Communications, vol. 4, no. 2, (May 2002), pp. 167–177.
C. F. Hsu, T. L. Liu, N. F. Huang, Performance of adaptive routing in wavelength routed networks with wavelength conversion capability, Photonic Network Communications, vol. 5, no. 1, (January 2003), pp. 41–57.
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Ziyu, S., Dongbin, Y., Zhengbin, L. et al. Performance Analysis of Multi-Fiber WDM Network with Limited-Range Wavelength Conversion. Photonic Network Communications 7, 301–312 (2004). https://doi.org/10.1023/B:PNET.0000026893.96214.68
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DOI: https://doi.org/10.1023/B:PNET.0000026893.96214.68