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Issue No.12 - December (2005 vol.16)
pp: 1190-1200
<p><b>Abstract</b>—The crossed cube is an important variant of the hypercube. The <tmath>n{\hbox{-}}{\rm{dimensional}}</tmath> crossed cube has only about half diameter, wide diameter, and fault diameter of those of the <tmath>n{\hbox{-}}{\rm{dimensional}}</tmath> hypercube. Embeddings of trees, cycles, shortest paths, and Hamiltonian paths in crossed cubes have been studied in literature. Little work has been done on the embedding of paths except shortest paths, and Hamiltonian paths in crossed cubes. In this paper, we study optimal embedding of paths of different lengths between any two nodes in crossed cubes. We prove that paths of all lengths between <tmath>\lceil{\frac{n+1}{2}}\rceil +1</tmath> and <tmath>2^n-1</tmath> can be embedded between any two distinct nodes with a dilation of 1 in the <tmath>n{\hbox{-}}{\rm{dimensional}}</tmath> crossed cube. The embedding of paths is optimal in the sense that the dilation of the embedding is 1. We also prove that <tmath>\lceil{\frac{n+1}{2}}\rceil+1</tmath> is the shortest possible length that can be embedded between arbitrary two distinct nodes with dilation 1 in the <tmath>n{\hbox{-}}{\rm{dimensional}}</tmath> crossed cube.</p>
Crossed cube, graph embedding, optimal embedding, interconnection network, parallel computing system.
Jianxi Fan, Xiaola Lin, Xiaohua Jia, "Optimal Path Embedding in Crossed Cubes", IEEE Transactions on Parallel & Distributed Systems, vol.16, no. 12, pp. 1190-1200, December 2005, doi:10.1109/TPDS.2005.151
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