Abstract
This article presents a cost-effective fault-tolerant routing strategy for optical-electronic grids. We propose the design of a fully adaptive, fault-tolerant routing strategy for multi-hop grid networks using wavelength-division multiplexing. The routing strategy is both deadlock-free and livelock-free. Regardless of the number and type of faults and size of the grid network, only three buffer sets and two routing tables of size O(d) are required at each node, where d is the grid dimension. In the absence of faults, minimal paths with the least congestion are used so that latency is minimised. In the presence of faults or congestion, misrouting is constrained selectively to prevent livelock. The routing strategy is local-information based and does not exploit component redundancy or isolation of healthy nodes and links.
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Loh, P.K.K., Hsu, W.J. (2005). Design of a Viable Fault-Tolerant Routing Strategy for Optical-Based Grids. In: Guo, M., Yang, L.T. (eds) New Horizons of Parallel and Distributed Computing. Springer, Boston, MA. https://doi.org/10.1007/0-387-28967-4_11
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DOI: https://doi.org/10.1007/0-387-28967-4_11
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