An optimal fault-tolerant routing algorithm for double-loop networks

doi:10.1109/12.926162

An optimal fault-tolerant routing algorithm for double-loop networks

2001-05-01

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DOI：10.1109/12.926162

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A weighted double-loop network can be modeled by a directed graph G(n: h(1), h(2); w(1), w(2)) with vertex set Z(n) = {0, 1,..., n - 1) and edge set E = E-1 boolean OR E-2 where E-1 = {(u, u + h(1))\ u is an element of Z(n)}, E-2 = {(u, u + h(2)) \| u is an element of Z(n)}. Assume that the weight of each edge in E-1 is w(1) and the weight of each edge in E-2 is w(2) In this paper, we present an optimal routing algorithm on double-loop networks under the case where there is at most one faulty element. Our algorithm is based on the fact that the shortest path from a vertex to any other vertex in a double-loop network is in the L-shape region.

Keywords:

double-loop networks

fault-tolerant

optimal message routing

An optimal fault-tolerant routing algorithm for double-loop networks

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