Preliminary Study of Network System Reliability Based on Big Data

Abstract

Complex network system has characteristics of numerous units, complex structure, and dynamic changes, which brings many problems for the study of network reliability. However, the big data of network system reliability and big data analysis technology provide more data and thought for supporting traditional reliability research. This paper explores the source, collecting process, preprocessing of the big data of network system reliability and research idea of big data analysis, meanwhile introduces research field to which big data of network system reliability relates at present. Introduction With the innovation of science and technology and the development of society, the scale and structure of the modern network system and the platform is becoming larger, whose units and connection mode is more complex, then the research problem of reliability is becoming more prominent. Network system is complex systems with particular structure and function, composed of many nodes (equipment, personnel, etc.), which is connected by edges (material, information, energy). Modern network system, such as communication network, traffic network, electric power network, has certain forming principle and task requires. It has characteristics of numerous units, complex structure, dynamic changes, etc. Traditional research of network system reliability usually have two kinds of thought: The one kind is that describing, simplifying and calculating network with series-parallel way. The other kind is that doing multiple simulations for network system if people have suitable condition. In recent years, information technology and computer network technology develops quickly and technology and services such as cloud computing, Internet, mobile phone constantly improve. Meanwhile, data scale of many kinds of systems has explosive growth. Big Data has become a hot issue in today's social studies[1]. Huge amounts of data acquisition in network system reliability and utilization become more convenient with the help of big data technology and analysis method. The big data hidden behind nodes, edges and the connection relations in the network system has a broad application space. Laws and properties revealed in big data play an important role in aspects such as exploring network system reliability problems in key stage, data correlation in models, prediction of network system reliability, which provide more data and thought for supporting traditional reliability research. This paper discusses the related contents and process of the study of network reliability based on the big data. Specific structure is as follows: the second part expounds the basic content of network reliability and some big data examples of network system reliability. In the third part the paper analyzes collection of the network reliability data. In the fourth part, starting from the concept of big data analysis, this paper introduces the general methods of big data analysis, and put forward some corresponding research idea combing with the network reliability data. The fifth part lists the field of study that the big data of network reliability is involved and applied preliminarily. The paper ends with a summary in the sixth part. International Conference on Information Sciences, Machinery, Materials and Energy (ICISMME 2015) © 2015. The authors Published by Atlantis Press 1828 Description of Network Reliability and Its Reliability Big Data Network Reliability Definition. In the process of the development of the network system reliability research, according to different network characteristics and research target, the standard of the definition of network reliability is not uniform. For example, in the communication network, according to the connotation of basic reliability and mission reliability, the network reliability is defined as the ability that complex network keeps entire network connectivity or realizes communication function under prescribed conditions and within the stipulated time. For other network systems, refers to the ability that transmits the material, information and energy completely and correctly in the network for certain time range of users’ expectations under prescribed conditions and within the stipulated time. Network Reliability Measure Parameters. The research of reliability problems is based on the analysis and evaluation of reliability measure parameters. At present, compared with the relatively perfect reliability measure parameter system, network reliability measure parameters have not yet formed a consistent view. But it always stresses that an important standard of reliability evaluation is to meet the needs of users in most of the definition. Therefore, by analyzing the inherent requirement of reliability and some existing research results, this paper briefly summaries some relevant parameters of the network system reliability as the following three aspects. Network System Reliability Measure Parameters Basic reliability Network Performance Random probability indicator