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reliability analysis for wireless communication networks via dynamic Bayesian network

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Journal of Systems Engineering and Electronics 2023年第5期34卷 1368-1374页

作者： YANG Shunqi ZENG Ying LI Xiang LI Yanfeng HUANG Hongzhong School of Naval Architecture and Ocean Engineering Huazhong University of Science and TechnologyWuhan 430074China School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu 611731China China University of Petroleum at Karamay Karamay 834000China

The dynamic wireless communication network is a complex network that needs to consider various influence factors including communication devices,radio propagation,network topology,and dynamic behaviors.Existing works focus on suggesting simplified reliability analysis methods for these dynamic networks.As one of the most popular modeling methodologies,the dynamic Bayesian network(DBN)is proposed.However,it is insufficient for the wireless communication network which contains temporal and non-temporal events.To this end,we present a modeling methodology for a generalized continuous time Bayesian network(CTBN)with a 2-state conditional probability table(CPT).Moreover,a comprehensive reliability analysis method for communication devices and radio propagation is suggested.The proposed methodology is verified by a reliability analysis of a real wireless communication network.

关键词： dynamic Bayesian network(DBN) wireless commu-nication network continuous time Bayesian network(CTBN) network reliability

reliability Assessment of a New General Matching Composed network

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China Communications 2024年第2期21卷 245-257页

作者： Zhengyuan Liang Junbin Liang Guoxuan Zhong Guangxi Key Laboratory of Multimedia Communications and network Technology School of ComputerElectronics and InformationGuangxi UniversityNanning 530004China Jiangxi Engineering Laboratory of IoT Technologies for Crop Growth Ji’an 343000China

The reliability of a network is an important indicator for maintaining communication and ensuring its stable operation. Therefore, the assessment of reliability in underlying interconnection networks has become an increasingly important research issue. However, at present, the reliability assessment of many interconnected networks is not yet accurate,which inevitably weakens their fault tolerance and diagnostic capabilities. To improve network reliability,researchers have proposed various methods and strategies for precise assessment. This paper introduces a novel family of interconnection networks called general matching composed networks(gMCNs), which is based on the common characteristics of network topology structure. After analyzing the topological properties of gMCNs, we establish a relationship between super connectivity and conditional diagnosability of gMCNs. Furthermore, we assess the reliability of g MCNs, and determine the conditional diagnosability of many interconnection networks.

关键词： conditional diagnosability interconnection networks network reliability super connectivity

A Genetic Algorithm to Solve Capacity Assignment Problem in a Flow network

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Computers, Materials & Continua 2020年第9期64卷 1579-1586页

作者： Ahmed Y.Hamed Monagi H.Alkinani M.R.Hassan Department of Computer Science Faculty of Computers and InformationSohag UniversitySohag82524Egypt Department of Computer Science and Artificial Intelligence College of Computer Science and EngineeringUniversity of JeddahJeddah21959Saudi Arabia Department of Mathematics and Computer Science Faculty of ScienceAswan UniversityAswan81528Egypt

Computer networks and power transmission networks are treated as capacitated flow networks.A capacitated flow network may partially fail due to maintenance.Therefore,the capacity of each edge should be optimally assigned to face critical situations-i.e.,to keep the network functioning normally in the case of failure at one or more edges.The robust design problem(RDP)in a capacitated flow network is to search for the minimum capacity assignment of each edge such that the network still survived even under the edge’s failure.The RDP is known as NP-hard.Thus,capacity assignment problem subject to system reliability and total capacity constraints is studied in this paper.The problem is formulated mathematically,and a genetic algorithm is proposed to determine the optimal solution.The optimal solution found by the proposed algorithm is characterized by maximum reliability and minimum total capacity.Some numerical examples are presented to illustrate the efficiency of the proposed approach.

关键词： Flow network capacity assignment network reliability genetic algorithms

Quantitative evaluation modeling of mobile Ad Hoc networkcommunication service availability under failure|

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International Journal of Modeling, Simulation, and Scientific Computing 2020年第6期11卷 250-267页

作者： Yanfang Fu Yichang Su Zan Wang Dengdeng Guo Fei Dai Lianjiong Zhong Jianing Wei Xi’an Technological University State and Provincial Joint Engineering Lab.of Advanced network Monitoring and Control Xi’an 710021P.R.China Beijing Electromechanical Engineering Institute Beijing 100074 P.R.China Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory Beijing 100074 P.R.China

The availability of network communication services is an important evaluation standard to measure the ability of the network to meet the user’s business needs.The current related research mostly focuses on the evaluation of network reliability,which cannot reflect the logical relationship between failure/maintenance and network performance parameters.Mobile Ad Hoc network is a multi-hop,centerless and energy-constrained distributed system.Due to the dynamic change of communication environment and the instability of wireless link,Ad Hoc network is facing great challenges in service availability.In this thesis,a fault-based quantitative evaluation model of traffic availability in Ad Hoc networks is proposed.By studying the multi-state Markov fault model of communication networks and the performance analysis of delay index based on CSMA\CA protocol,the quantitative evaluation of traffic availability in Ad Hoc networks is realized.And the availability of tactical unit network under different typical network configuration conditions is analyzed through experiments.

关键词： network reliability service availability fault model quantitative evaluation

Constructing Edge-Colored Graph for Heterogeneous networks

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Journal of Computer Science & Technology 2015年第5期30卷 1154-1160页

作者：侯睿武继刚陈亚文张海波隋秀峰 School of Computer Science and Software Engineering Tianjin Polytechnic University Tianjin 300387 China State Key Laboratory of Computer Architecture~ Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China Department of Computer Science University of Otago Dunedin 9054 New Zealand

In order to build a fault-tolerant network, heterogeneous facilities are arranged in the network to prevent homogeneous faults from causing serious damage. This paper uses edge-colored graph to investigate the features of a network topology which is survivable after a set of homogeneous devices malfunction. We propose an approach to designing such networks under arbitrary parameters. We also show that the proposed approach can be used to optimize inter-router connections in network-on-chip to reduce the additional consum!otion of energy and time delay.

关键词： network reliability homogeneous fault fault tolerance reconfigurable system network-on-chip

An improved cut-based recursive decomposition algorithm for reliability analysis of networks

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Earthquake Engineering and Engineering Vibration 2012年第1期11卷 1-10页

作者： Liu Wei Li Jie State Key Laboratory for Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China Department of Building Engineering Tongji UniversityShanghai 200092China

In this paper, an improved cut-based recursive decomposition algorithm is proposed for lifeline networks. First, a complementary structural function is established and three theorems are presented as a premise of the proposed algorithm. Taking the minimal cut of a network as decomposition policy, the proposed algorithm constructs a recursive decomposition process. During the decomposition, both the disjoint minimal cut set and the disjoint minimal path set are simultaneously enumerated. Therefore, in addition to obtaining an accurate value after decomposing all disjoint minimal cuts and disjoint minimal paths, the algorithm provides approximate results which satisfy a prescribed error bound using a probabilistic inequality. Two example networks, including a large urban gas system, are analyzed using the proposed algorithm. Meanwhile, a part of the results are compared with the results obtained by a path-based recursive decomposition algorithm. These results show that the proposed algorithm provides a useful probabilistic analysis method for the reliability evaluation of lifeline networks and may be more suitable for networks where the edges have low reliabilities.

关键词： network reliability complementary structural function cut-based recursive decomposition algorithm

Research on Link Duration for Mobile Multihop Communication networks

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China Communications 2016年第8期13卷 159-168页

作者： Danyang Qin Shuang Jia Songxiang Yang Erfu Wang Qun Ding Key Laboratory of Electronics Engineering College of Heilongjiang University

Mobile multihop communication network is an important branch of modern mobile communication system, and is an important technical support for ubiquitous communication. The random movement of the nodes makes the networking be more flexible, but the frequently changing topology will decrease the link duration between nodes significantly, which will increase the packets loss probability and affect the network communication performance. Aiming at the problem of declining link duration caused by nomadic characteristics in mobile multihop communication network, four link duration models for possible moving states are established based on different features in real networking process in this paper, which will provide reliable criterion for the optimal routing selection. Model analysis and simulation results show that the reliable route established by the proposed model will effectively extend the link duration, and can enhance the global stability of the mobile multihop information transmission, so as to provide new option to transmission reliability improvement for the mobile communication network.

关键词： multihop mobile networks link duration network reliability node mobility models

A novel compact simulation interface specification

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Science China(Information Sciences) 2014年第6期57卷 223-240页

作者： LIU BuQuan WANG HuaiMin College of Information System and Management National University of Defense Technology College of Computer National University of Defense Technology

Although the HLA distributed simulation standard has been widely applied,the RTIs in accordance with the standard usually do not take full account of the reliability of more than 100 HLA services;as a result they cannot be effectively applied to an unreliable network.On the basis of usual management services of HLA,this paper proposes a 6-service compact simulation interface specification(CSIS).Unlike the HLA declaration management based on"class",CSIS directly deals with data,adopts the data filtering mechanism based on"channel",and has the same characteristics of interoperability,reusability and scalability as the HLA.In many cases,it can replace the HLA to develop distributed simulations in a simpler way.Aiming at the typical demand of joint simulation between land and offshore systems over unreliable network in various complicated meteorological conditions,YHChannel,an implementation compliant with CSIS,is introduced,which deploys two channel servers in land and offshore respectively.This paper discusses the solution of the reliability of every service in YHChannel,and brings forward a useful communication strategy for unreliable network,which can reduce packet loss rate as well as transmission time by compressing,merging and retransmitting data packets.The experimental results show that when the packet loss rate of an unreliable network is reduced to 20 percent,YHChannel’s packet loss rate will be very small and approximately equal to zero.These ideas about CSIS and the communication strategy in YHChannel can be widely used in the sea-ground-sky-space interconnection between distributed software systems.

关键词： high level architecture distributed simulation simulation interface specification channel server wireless network network reliability

Reliable Braided Multipath Routing with network Coding for Underwater Sensor networks

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China Ocean Engineering 2010年第3期24卷 565-574页

作者：杨余旺古力鞠玉涛郑亚孙亚民杨静宇 Computer Department Nanjing University of Science and Technology Mechanical Electrical Engineering Department Nanjing University of Science and Technology

Owing to the long propagation delay and high error rate of acoustic channels, it is very challenging to provide reliable data transfer for underwater sensor networks. Moreover, network coding is proved to be an effective coding technique for throughput and robustness of networks. In this paper, we propose a Reliable Braided Multipath Routing with network Coding for underwater sensor networks （RBMR-NC）. Disjoint multi-path algorithm is used to build independent actual paths, as called main paths. Some braided paths on each main path are built according to the braided multi-path algorithm, which are called logic paths. When a data packet is transmitted by these nodes, the nodes can employ network coding to encode packets coming from the same group in order to further reduce relativity among these packets, and enhance the probability of successful decoding at the sink node. Braided multi-path can make the main paths to be multiplexed to reduce the probability of long paths. This paper mainly employs successful delivery rate to evaluate RBMR-NC model with theoretical analysis and simulation methods. The results indicate that the proposed RBMR-NC protocol is valuable to enhance network reliability and to reduce system redundancy.

关键词： network coding multi-path routing underwater sensor networks network reliability