Abstract
As an important technique, traffic grooming aggregates the traffic of multiple connections into a single wavelength channel, and significantly increases the utilization of bandwidth of wavelength channels. In this paper, for the problem of grooming multicast traffics in unidirectional SONET/WDM rings, an efficient approximation algorithms with approximation factor of 2lng + lnM + o(ln(M ·g)) for any given number of multicast requests M and grooming factor g is proposed.
The work is supported by NNSF (60373012, 10871119) of China, the French-Chinese foundation for sciences and their applications and the China scholarship Council, Promotional Foundation (2005BS01016) for Middle-aged or Young Scientists of Shandong Province, SRI of SPED(J07WH05), DRF and UF(XJ0609)of QFNU.
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Yu, J., Cui, S., Wang, G. (2009). Approximating the Multicast Traffic Grooming Problem in Unidirectional SONET/WDM Rings. In: Du, DZ., Hu, X., Pardalos, P.M. (eds) Combinatorial Optimization and Applications. COCOA 2009. Lecture Notes in Computer Science, vol 5573. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02026-1_49
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