The Edge Connectivity of Expanded k-Ary n-Cubes

Mass data processing and complex problem solving have higher and higher demands for performance of multiprocessor systems. Many multiprocessor systems have interconnection networks as underlying topologies. The interconnection network determines the performance of a multiprocessor system. The networ...

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Main Authors: Shiying Wang, Mujiangshan Wang
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2018/7867342
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author Shiying Wang
Mujiangshan Wang
author_facet Shiying Wang
Mujiangshan Wang
author_sort Shiying Wang
collection DOAJ
description Mass data processing and complex problem solving have higher and higher demands for performance of multiprocessor systems. Many multiprocessor systems have interconnection networks as underlying topologies. The interconnection network determines the performance of a multiprocessor system. The network is usually represented by a graph where nodes (vertices) represent processors and links (edges) represent communication links between processors. For the network G, two vertices u and v of G are said to be connected if there is a (u,v)-path in G. If G has exactly one component, then G is connected; otherwise G is disconnected. In the system where the processors and their communication links to each other are likely to fail, it is important to consider the fault tolerance of the network. For a connected network G=(V,E), its inverse problem is that G-F is disconnected, where F⊆V or F⊆E. The connectivity or edge connectivity is the minimum number of F. Connectivity plays an important role in measuring the fault tolerance of the network. As a topology structure of interconnection networks, the expanded k-ary n-cube XQnk has many good properties. In this paper, we prove that (1) XQnk is super edge-connected (n≥3); (2) the restricted edge connectivity of XQnk is 8n-2 (n≥3); (3) XQnk is super restricted edge-connected (n≥3).
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spelling doaj-art-7b5b56d3c91c415183d6d19e700cebe32025-08-20T03:35:03ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2018-01-01201810.1155/2018/78673427867342The Edge Connectivity of Expanded k-Ary n-CubesShiying Wang0Mujiangshan Wang1School of Mathematics and Information Science, Henan Normal University, Xinxiang, Henan 453007, ChinaSchool of Electrical Engineering and Computer Science, The University of Newcastle NSW 2308, AustraliaMass data processing and complex problem solving have higher and higher demands for performance of multiprocessor systems. Many multiprocessor systems have interconnection networks as underlying topologies. The interconnection network determines the performance of a multiprocessor system. The network is usually represented by a graph where nodes (vertices) represent processors and links (edges) represent communication links between processors. For the network G, two vertices u and v of G are said to be connected if there is a (u,v)-path in G. If G has exactly one component, then G is connected; otherwise G is disconnected. In the system where the processors and their communication links to each other are likely to fail, it is important to consider the fault tolerance of the network. For a connected network G=(V,E), its inverse problem is that G-F is disconnected, where F⊆V or F⊆E. The connectivity or edge connectivity is the minimum number of F. Connectivity plays an important role in measuring the fault tolerance of the network. As a topology structure of interconnection networks, the expanded k-ary n-cube XQnk has many good properties. In this paper, we prove that (1) XQnk is super edge-connected (n≥3); (2) the restricted edge connectivity of XQnk is 8n-2 (n≥3); (3) XQnk is super restricted edge-connected (n≥3).http://dx.doi.org/10.1155/2018/7867342
spellingShingle Shiying Wang
Mujiangshan Wang
The Edge Connectivity of Expanded k-Ary n-Cubes
Discrete Dynamics in Nature and Society
title The Edge Connectivity of Expanded k-Ary n-Cubes
title_full The Edge Connectivity of Expanded k-Ary n-Cubes
title_fullStr The Edge Connectivity of Expanded k-Ary n-Cubes
title_full_unstemmed The Edge Connectivity of Expanded k-Ary n-Cubes
title_short The Edge Connectivity of Expanded k-Ary n-Cubes
title_sort edge connectivity of expanded k ary n cubes
url http://dx.doi.org/10.1155/2018/7867342
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