Analysis of multi-path routing
IEEE/ACM Transactions on Networking (TON)
Aggregating Bandwidth for Multihomed Mobile Collaborative Communities
IEEE Transactions on Mobile Computing
Reliable multipath provisioning for high-capacity backbone mesh networks
IEEE/ACM Transactions on Networking (TON)
QoS-constrained multi-path routing for high-end network applications
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
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In this paper, we propose to apply multipath routing in optical networks for the emerging high-performance applications with extremely high bandwidth requirements, typically larger than the capacity of one wavelength. To this end, we present a novel Multipath Lightpath Provisioning mechanism and derive an optimal solution by an ILP (Integer Linear Programming) approach, with differential delay and bandwidth as constraints to multipath finding. Our mechanism can set up multiple lightpaths over multiple fiber-level paths not only to satisfy the extremely high bandwidth requirements, but also to reduce the minimum bandwidth required for backup paths as it reduces the amount of traffic affected by single fiber breaks. For comparison, we also present an ILP-based Single Path Lightpath Provisioning mechanism and show that its multipath counterpart performs better independently of the mesh topology under study. The performance results demonstrate that the proposed multipath lightpath provisioning mechanism outperforms the traditional single path routing by decreased bandwidth request blocking ratio, while reducing the amount of traffic that may be affected by single link failures.