Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 1
264-268,272

New method of connecting minimum-weighted virtual backbone in wireless network

Qin Bin1,2
Liang Jiarong1,2
Yi Meng1,2
1. School of Computer & Electronics Information, Guangxi University, Nanning 530004, China
2. Guangxi Key Laboratory of Multimedia Communications & Network Technology, Nanning 530004, China
DOI: 10.19734/j.issn.1001-3695.2019.10.0628

Abstract

The virtual backbone(VB) in wireless networks is a subset of some wireless nodes, such that only VB nodes are responsible for routing related tasks. The smaller the weight of VB, the less the overhead. In a node-weighted wireless network, not only the number of nodes in VB should be considered, but also the total weight should be considered. Frequently, a weighted wireless network is modeled as a node-weighted unit disk graph(UDG). Correspondingly, the minimum-weighted VB problem in the weighted wireless network is abstracted as the minimum-weighted connected dominating set(MWCDS) problem in the node-weighted UDG. Finding MWCDS is a NP-hard problem. To reduce the approximate ratio of the connected part of the MWCDS problem in node-weighted UDG, this paper proposed a new method—degree-based node-weighted Steiner tree algorithm in the connected part. Combining the best results at present, it will obtain a(3.32+ε) -approximation algorithm for MWCDS problem in UDG. Similarly, it will also obtain a(3.32+ε) -approximation algorithm for MWCVC problem in UDG. It is proved that the method of reducing the approximate ratio of the MWCDS problem in node-weighted UDG is feasible by improving the approximate ratio of connected parts.

Foundation Support

国家自然科学基金资助项目(61862003)
广西自然科学基金资助项目(2018GXNSFDA281052,2017GXNSFAA198276,2017GXNSFAA198263)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2019.10.0628
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 1
Section: Technology of Network & Communication
Pages: 264-268,272
Serial Number: 1001-3695(2021)01-053-0264-05

Publish History

[2021-01-05] Printed Article

Cite This Article

覃斌, 梁家荣, 易梦. 无线网络中最小权虚拟骨干网连通部分的新方法 [J]. 计算机应用研究, 2021, 38 (1): 264-268,272. (Qin Bin, Liang Jiarong, Yi Meng. New method of connecting minimum-weighted virtual backbone in wireless network [J]. Application Research of Computers, 2021, 38 (1): 264-268,272. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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