A Group-Theoretic Model for Symmetric Interconnection Networks
IEEE Transactions on Computers
Information Processing Letters
Routing function and deadlock avoidance in a star graph interconnection network
Journal of Parallel and Distributed Computing
Node-to-node cluster fault tolerant routing in star graphs
Information Processing Letters
Adaptive Fault-Tolerant Routing in Cube-Based Multicomputers Using Safety Vectors
IEEE Transactions on Parallel and Distributed Systems
A Routing and Broadcasting Scheme on Faulty Star Graphs
IEEE Transactions on Computers
Optimal Broadcasting on the Star Graph
IEEE Transactions on Parallel and Distributed Systems
Reliable Communication in Faulty Star Networks
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
Optimal Fault-Tolerant Routing in Hypercubes Using Extended Safety Vectors
ICPADS '00 Proceedings of the Seventh International Conference on Parallel and Distributed Systems
Fault-Tolerant Routing on the Star Graph with Safety Vectors
ISPAN '02 Proceedings of the 2002 International Symposium on Parallel Architectures, Algorithms and Networks
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In this paper a fault tolerant routing algorithm for unicasting on star graph is proposed. The routing algorithm does not involve back tracking and uses fault-vectors. Each node in an n-star has a fault-vector of $\lfloor\frac{3(n-1)}{2}\rfloor$ bits. The kth bit of a node’s fault-vector is a measure of its routing ability to nodes which are at distance k from itself. The fault-vector of each node can easily be calculated through $\lfloor\frac{3(n-1)}{2}\rfloor$ rounds of information exchanges among neighbor nodes. For a given source destination pair (u,v), the routing algorithm finds a path of length d + h where d is the length of the shortest path between u and v in a fault-free star graph and h = 0, 2 or 4. The space requirement for storing the fault vector is O(n) in each node. Simulation results show that the proposed algorithm far outperforms the routing algorithm based on safety vectors [13].