A Reliability-Oriented Local-Area Model for Large-Scale Wireless Sensor Networks. (29th March 2015)

• Record Type: Journal Article
• Authors: Peng, Haixia; Zhao, Hai; Bi, Yuanguo; Si, Shuaizong; Cai, Wei
• Other Names: Meng Qinggang Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2015(2015)
• Publication Date: 2015-03-29
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2015/923692
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : Large-scale wireless sensor networks (WSNs) have demonstrated some complex features which are similar to those of other types of complex networks, such as social networks. Based on these complex features, evolution process and characteristic of WSNs, we represent a WSN topologically by building a suitable model, which is named as the reliability-oriented local-area model (ROLM) and aimed at improving the performance of WSNs. For analyzing the performance of the ROLM, we define the reliability as the probability of that the relative error between the measurement and the true value is equal to or less thanε ( ε ≥ 0 ) and proposed a parameterη to measure the reliability of the network. Based on them, we useη to analyze the influence of network structure on the reliability, and compared the reliabilities of the ROLM and the existing WSNs. Experiment results prove that the large-scale WSN follows a power-law distribution, and it has scale-free characteristic and small world characteristic. And it also shows that, comparing with existing model, ROLM not only balances energy consumption by limiting the connectivity of each node to prolong the lifetime of the network, but also improves the reliability substantially. And the ROLM can be used to express the topology of reliability-oriented WSNs and analyze the structure preferably.