Summary
Traditionally, network routing was optimized with respect to an expected traffic matrix, which left the network in a suboptimal state if user traffic did not match expectations. A demand-oblivious routing is, contrarily, optimized with respect to all possible traffic matrices, obviating the need for traffic matrix estimation. Oblivious routing is a fundamentally distributed scheme, so it can be implemented easily. Unfortunately, in certain cases it may cause unwanted link over-utilization. Recently, we have introduced a hybrid centralized-distributed method to mitigate this shortcoming. However, our scheme did not provide a theoretical upper bound for the link over-utilization. In this paper, we tackle the problem again from a different perspective. Based on a novel hyper-cubic partition of the demand space, we construct a new algorithm that readily delivers the theoretical bounds. Simulation results show the theoretical and practical significance of our algorithm.
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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Németh, G., Rétvári, G. (2012). Hybrid Demand Oblivious Routing: Hyper-cubic Partitions and Theoretical Upper Bounds. In: Tomkos, I., Bouras, C.J., Ellinas, G., Demestichas, P., Sinha, P. (eds) Broadband Communications, Networks, and Systems. BROADNETS 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 66. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30376-0_7
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DOI: https://doi.org/10.1007/978-3-642-30376-0_7
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