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Towards energy saving and load balancing data aggregation for wireless sensor networks

Information Technology Journal 2011年第2期10卷 409-415页

作者： Liang, Wei Xu, Jianbo Liu, Yuanyuan Key Laboratory of Knowledge Processing and Networked Manufacturing School of Computer Science and Engineering Hunan University of Science and Technology Xiangtan 411201 China Department of Electrical Engineering Guangdong Songshan Polytechnic College Shaoguang 512126 China

In this study, we focus on the development of energy efficient and achievable load balancing mechanisms for wireless sensor networks. Due to resource constraint and tremendous amount of sensors, one possible way of achieving maximum lifetime of the network is applying data aggregation on sensor data. However, existing approaches introduce significant computation and control overheads that often not suitable for sensor networks applications. In view of this, we propose an in-network data aggregation scheme by exploiting the inherent spatial correlation of the sensed data. Each sensor multiplies its reading with a random coefficient and sends the product to the next hop to calculate a weighted sum of all the massage. Instead of receiving individual sensor readings, the sink will receive all weighted sum and restore the original data. By doing so, each node only performs one addition and one multiplication in order to compute one weighted sum and consume the same amount of energy. Simulation results demonstrate that the proposed scheme is efficient and outperforms existing schemes in terms of energy gain and network lifetime. © 2011 Asian Network for Scientific Information.

关键词： Energy efficiency

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Synchronization of fractional-order chaotic system with application to communication

Synchronization of fractional-order chaotic system with appl...

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2011 3rd International Asia Conference on Informatics in Control, Automation and Robotics, CAR 2011

作者： Wen, Tan Fengling, Jiang Xianqun, Liu Jian Xun, Liu Feng, Wu Key Lab. of Knowledge Processing and Networked Manufacture Hunan University of Science and Technology Xiangtan Hunan 411201 China College of Information and Electrical Engineering Hunan University of Science and Technology of China Xiangtan 411201 China College of Mechanical and Electrical Engineering Hunan University of Science and Technology of China Xiangtan 411201 China

ISBN: (纸本)9783642258985

This paper studied the synchronization of fractional-order chaotic system based on the theory of fractional calculus, and the synchronization between the two identical fractional-order Chen systems is realized after 0.6s by using the active control, and the simulation results verify the effectiveness of the examined method. Furthermore, the control scheme can be used in secure communication via the technology of chaotic masking. Numerical simulations coincide with the theoretical analysis. © 2011 Springer-Verlag.

关键词： Synchronization

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WSRank: A Method for Web Service Ranking in Cloud Environment

WSRank: A Method for Web Service Ranking in Cloud Environmen...

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IEEE International Symposium on Dependable, Autonomic and Secure Computing (DASC)

作者： Rong Hu Wanchun Dou Xiaoqing Frank Liu Jianxun Liu Key Laboratory of Knowledge Processing & Networked Manufacturing Hunan University of Science and Technology Xiangtan Hunan China State Key Laboratory for Novel Software Technology Nanjing University Nanjing Jiangsu China Department of Computer Science Missouri University of Science & Technology Rolla MO USA

For services that have similar functionalities, if they are published by different cloud platforms, it is a challenge to evaluate them, for satisfying different end users' personal preferences. In view of this challenge, a method for web service ranking, named WSRank, is investigated in cloud environment in this paper. It aims at ranking different Web services published by different cloud platforms, taking advantage of Page Rank principle. At last, a case study and experiment are presented to demonstrate the feasibility of the method.

关键词： Web services Web pages Matrix decomposition Damping Search engines Production facilities Indexes

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Synchronization of Fractional-Order Chaotic System with Application to Communication

Synchronization of Fractional-Order Chaotic System with Appl...

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2011 3rd International Asia Conference on Informatics in Control, Automation and Robotics (CAR 2011 LNEE 132)

作者： Tan Wen Jiang Fengling Liu Xianqun Liu Jian Xun Wu Feng Key Lab of Knowledge Processing and Networked Manufacture Hunan University of Science and Technology College of Information and Electrical Engineering Hunan university of Science and Technology of China College of Mechanical and Electrical Engineering Hunan university of Science and Technology of China

关键词： Fractional-order system,chaos synchronization,communication

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RETRACTED ARTICLE: Design and implementation of a total quality management system for graduation project

RETRACTED ARTICLE: Design and implementation of a total qual...

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作者： Li, Zhang-Bing Liu, Jian-Xun Zhao, Yi-Jiang Bo, Gong Key Lab. of Knowledge Processing and Networked Manufacturing Hunan University of Science and Technology Xiangtan China

ISBN: (纸本)9781424480340

Graduation Project is a significant step for undergraduate students to practice their knowledge learned in universities. Due to many reasons, e.g., there are no tools to support total quality control process for the entire graduation project management, the completion quality of graduation project is not as good as the authorities expected. To address this issue, we implemented a graduation project management information system based on B/S model by using ASP & SqlServer to monitor, manage and control those which participate in the graduation project processes. It is driven by total quality control method and is supported by workflow technology. This system has been deployed and used in our department for 6 years. By this system, the management of graduation project becomes easy and efficient and the completion quality of graduation project as well as the graduation paper is improved a lot in our department. © 2010 IEEE.

关键词： Total quality management

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Trustworthiness fusion of web service based on D-S evidence theory

Trustworthiness fusion of web service based on D-S evidence ...

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6th International Conference on Semantics, knowledge and Grid, SKG 2010

作者： Rong, Hu Jian-Xun, Liu Key Lab Knowledge Processing and Networked Manufacturing Hunan University of Sci and Tech Xiangtan Hunan 411201 China

ISBN: (纸本)9780769541891

Trustworthiness plays an important role in service activities. However, it is not easy to define and compute the service trustworthiness as the evidence involves several information from different service party and maybe conflict at the same time. We discuss the definition and computation method of trustworthiness in this paper. The trustworthiness is acquired from service provider, service user, and service agent and then it is fused based on D-S evident theory. Finally, we testify that the trustworthiness can improve the precision of service discovery via simulation experiments. © 2010 IEEE.

关键词： Web services

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Discovering batch processing area from workflow logs

Discovering batch processing area from workflow logs

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International Conference on Computational Science and Engineering

作者： Wen, Yiping Liu, Jianxun Chen, Zhigang Key Lab. of Knowledge Processing and Networked Manufacturing Hunan University of Science and Technology Hunan China School of Information Science and Engineering Central South University Changsha China

ISBN: (纸本)9780769543239

Our previous work has preliminarily investigated the batch processing model and its implementation. To solve the problem of setting batch processing areas for the applications of batch processing in workflow, this paper proposes a method of discovering batch processing area from workflow logs. Its mining process includes phrases of mining initial workflow model, identifying batch processing feature of activity and discovering batch processing area in the initial workflow model. The result of simulation experiments shows that this method can work effectively for several different size of data sets. © 2010 IEEE.

关键词： Batch data processing

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An algorithm on the mining of batch processing process

An algorithm on the mining of batch processing process

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International Conference on Computational Science and Engineering

ISBN: (纸本)9780769543239

Batch processing process denotes the process used in the workflow management systems (WfMSs) supporting dynamic batch processing. During the run time of their concurrent process instances, multiple activity cases of the same type may be vertically combined together according to some batch logics and submitted for execution as a whole. Therefore, it is necessary to study the actual way process instances are executed. In this paper, we propose an algorithm to mine batch processing process from system logs. A case study is also done to illustrate its effectiveness. © 2010 IEEE.

关键词： Workflow management

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Trustworthiness Fusion of Web Service Based on D-S Evidence Theory

Trustworthiness Fusion of Web Service Based on D-S Evidence ...

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Sixth International Conference on Semantics,knowledge and Grids(第六届语义、知识与网格国际会议 SKG 2010)

作者： HU Rong LIU Jian-xun Key Lab Knowledge Processing and Networked Manufacturing Hunan University of Sci &Tech Xiangtan Hunan 411201 China

关键词： Web services Security Computational modeling Usability Reliability Semantics Quality of service

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Notice of Retraction: Design and implementation of a total quality management system for Graduation Project

Notice of Retraction: Design and implementation of a total q...

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International Conference on Educational and Information Technology (ICEIT)

作者： Li Zhang-bing Liu Jian-xun Zhao Yi-jiang Gong Bo Key Laboratory of Knowledge Processing and Networked Manufacturing Hunan University of Science and Technology Xiangtan China

This article has been retracted by the publisher.

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