Dimension-adjacent trees and parallel construction of independent spanning trees on crossed cubes

  • Authors:
  • Baolei Cheng;Jianxi Fan;Xiaohua Jia;Jin Wang

  • Affiliations:
  • School of Computer Science and Technology, Soochow University, Suzhou 215006, China and Provincial Key Laboratory for Computer Information Processing Technology, Soochow University, China;School of Computer Science and Technology, Soochow University, Suzhou 215006, China;Department of Computer Science, City University of Hong Kong, Hong Kong;School of Computer Science and Technology, Soochow University, Suzhou 215006, China

  • Venue:
  • Journal of Parallel and Distributed Computing
  • Year:
  • 2013

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Abstract

Independent spanning trees (ISTs) have increasing applications in fault-tolerance, bandwidth, and security. In this paper, we study the problem of parallel construction of ISTs on crossed cubes. We first propose the definitions of dimension-adjacent walk and dimension-adjacent tree along with a dimension property of crossed cubes. Then, we consider the parallel construction of ISTs on crossed cubes. We show that there exist n general dimension-adjacent trees which are independent of the addresses of vertices in the n-dimensional crossed cube CQ"n. Based on n dimension-adjacent trees and an arbitrary root vertex, a parallel algorithm with the time complexity O(2^n) is proposed to construct n ISTs on CQ"n, where n=1.