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International Multi-Symposiums on computer and Computational Sciences (IMSCCS)

作者： Yong Qin Chenggui Zhao Information and Network Center Maoming University Maoming Guangdong China School of Computer Science and Engineering South China University of Technology Guangzhou China

In this paper, the authors propose a scheme of multilevel parallel scheduling and traffic balancing, based on multiple constraints of packet switch network. By linear mapping tiny subsets of route space to network links, we obtain the single solution and quantization formulation of split scheduling algorithm according to non-cooperative route scheduling strategy at single node. Furthermore, we also present the concept of link factor to descript the carrying capacity of links more accurately. The cyclic biding algorithm was designed to optimize the time-weighed property, which passes down the single solution to parallel controlling nodes and parallelizes the computation of IP header reorganization. It also was provided that the approximate method of computing the extended granularity of the controlling nodes

关键词： Telecommunication traffic Traffic control Processor scheduling Bandwidth Scheduling algorithm Algorithm design and analysis Load management Space technology Switches Communication system traffic control

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Robust Multiuser Detection for Multi-Carrier CDMA

Robust Multiuser Detection for Multi-Carrier CDMA

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IEEE International Conference on networking, Sensing and Control

作者： Rensheng Wang Hongbin Li Wireless Network Security Center (WiNSeC) Stevens Institute of Technology Hoboken NJ USA Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken NJ USA

In this paper, we propose a class of robust multiuser detection (MUD) techniques for multi-carrier (MC) code-division multiple-access (CDMA) by explicitly taking into account prior estimation errors in the initial channel estimates and the sample covariance matrix. Specifically, robust MUD detectors are developed by optimizing the worst-case performance over two separate bounded uncertainty sets pertaining to the aforementioned estimation errors. We have shown that, although the prior estimation errors are generally not bounded, it is beneficial to optimize the worst-case performance over properly chosen bounded uncertainty sets determined by a bounding probability of user choice. Numerical results show that the proposed robust schemes yield improved performance over those that ignore the prior estimation errors

关键词： Robustness Multiuser detection Multiaccess communication Estimation error Uncertainty Covariance matrix Chebyshev approximation Array signal processing Member and Geographic Activities Board committees Channel estimation

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Stopband prediction with dispersion diagram for electromagnetic bandgap structures in printed circuit boards

Stopband prediction with dispersion diagram for electromagne...

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IEEE International Symposium on Electromagnetic Compatibility (EMC)

作者： Y. Toyota A.E. Engin Tae Hong Kim M. Swaminathan K. Uriu Department of Communication Network Engineering Okayama University Okayama Japan Packaging Research Center School of Electrical and Computer Engineering Georgia Institute of Technology USA Packaging Research Center School of Electrical and Computer Engineering Georgia Institute of Technology USA EMC Design Group System Engineering Center Matsushita Elecrric Indusrrial Company Limited Japan

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Research on the Application of the Case Library Based on Grid Using Particle Swarm Optimization

Research on the Application of the Case Library Based on Gri...

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IEEE International Conference on networking, Sensing and Control

作者： Hong Zhu Demin Wang Wengang Zhou Xin Liu Ping Hu College of computer science and technology Jilin University China Network center Jilin University China Institute of Auto-Body and Die Engineering Jilin University China

The application of case libraries has become a main problem in engineering designs. This paper presents an organizing scheme structured in catalogs and archives to design auto-body panel die-design case library. Meanwhile, we have developed a case library framework based on grid, and solved the principal problems existing in current case libraries. For example, the applications are restricted to small enterprises, and it is difficult to realize large-scale share among various case libraries. Additionally, a modified particle swarm optimization algorithm is proposed to realize a quick match with the best case, which can satisfy the intelligence request of the case library and direct the future new designs. Experiment results show that the proposed algorithm can greatly increase the efficiency of searching the best case, and the case retrieved by our method has a higher similar accuracy compared with the objective case

关键词： computer aided software engineering Libraries Particle swarm optimization computer science Educational institutions Design engineering Organizing Catalogs Large-scale systems Algorithm design and analysis

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Research on a MCOP algorithm for optimized path

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Journal of Information and Computational Science 2006年第4期3卷 849-860页

作者： Qin, Yong Wang, Yukun Zhao, Chenggui Liang, Gen Liang, Huomin Jiang, Jiazhi School of Computer Science and Engineering South China University of Technology Guangzhou 510640 China Center of Computer Network and Information Maoming University Maoming 525000 China School of Software Engineering Taiyuan University of Technology Taiyuan 030024 China School of Computing South China Normal University Guangzhou 510631 China

Based on an explicit network topology with multiple uplinks, a scheduling model for optimal network path is proposed while taking into consideration of multiple constraints such as delays, bandwidth, hops and price ratio. An optimized solution to traffic flow and price under non-linear constraint is developed using alternative manner. Flow to price ratio is optimized with dynamic selection of optimal path. A MCOP scheduling algorithm for optimal path and its engineering technique are proposed. Simulation and comparative experiments shows, this algorithm is suitable for the traffic flow optimization under different traffic-loads in a multi-links scenario.

关键词： computer networks

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MAP-Based Object Extraction from Uncalibrated Image Pair

MAP-Based Object Extraction from Uncalibrated Image Pair

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IEEE International Conference on Image Processing

作者： Hyung Il Koo Sang Hwa Lee Nam Ik Cho Seong Keun Kim Dong Hahk Lee Sunghoon Lee School of Electrical Engineering and Computer Sciences Seoul National University South Korea New Technology Development Team Network Research and Development Center SK Telecom South Korea

In this paper, we propose a new MAP algorithm for foreground objects extraction from uncalibrated image pairs. The segmentation is performed in the MAP framework with MRF (Markov random field) modeling of images. The proposed algorithm estimates several spatial transformations between two images by corresponding SIFT (scale invariant feature transform) points and sequential RANSAC (random sample consensus) algorithm. The area-ratio criterion is applied to the each transformation so that we select the transformation of foreground object. Using these transformations, we compute the likelihood of color-segmented subregions. We model the prior information which is based on smoothness condition. Finally, the object extraction is performed by the Bayesian belief propagation. Experiments on various image pairs and video sequences show promising results in extracting the foreground objects from the backgrounds.

关键词： Image segmentation Cameras Bayesian methods Iterative algorithms Belief propagation Video sequences computer networks Telecommunication computing Research and development Inference algorithms

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Overview of research and development on seamless networking technologies

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Journal of the National Institute of Information and Communications technology 2006年第4期53卷 91-100页

作者： Morikawa, Hiroyuki Inoue, Masugi Hasegaw, Mikio Murakami, Homare Mahmud, Khaled Ryoki, Nobuo Pyo, Chang Woo Tran, Ha Nguyen Minami, Masateru Teraoka, Fumio Department of Frontier Informatics Graduate School of Frontier Sciences University of Tokyo Ubiquitous Mobile Communications Group New Generation Wireless Communications Research Center North South University Bangladesh Department of Electronic Engineering Faculty of Engineering Shibaura Institute of Technology Network Architecture Group New Generation Network Research Center Kyushu Research Center Collaborative Research Management Group Department of Information and Computer Science Faculty of Science and Technology Keio University

National Institute of Information and Communications technology of Japan (NICT) completed a project on new-generation mobile communications networks for beyond 3G or 4G in March 2006. This paper presents our vision of new-generation mobile communications networks from networking perspective and their capabilities to be offered: fast and large-capacity handover, cross-network handover, cross-device handover, and interworking between real and cyber worlds. Then, Metro Mobile Ring network technology for the first capability, MIRAI architecture for the second and third capabilities, and other works are presented.

关键词： Research and development management

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Disaster recovery system model with e-government case study

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Natural Hazards Review 2006年第4期7卷 145-149页

作者： Wang, Kun Li, Long-Hai Yuan, Feng Zhou, Li-Hua Key Laboratory of Computer Network and Information Security Xidian Univ. Ministry of Education Xi'an 710071 Shaanxi China Dept. of Computer Science and Technology Xidian Univ. Xi'an 710071 Shaanxi China National Information Security Engineering and Technology Research Center Beijing 100093 China

We present a robust disaster recovery system model according to the requests of disaster recovery talent of a key e-government project of China. The model strengthens the safe communication ability and guarantees the secure command on disaster recovery. It introduces a self-supervision power to watch the integrality and security of the disaster recovery system itself. It makes the use, management, and maintenance of the disaster recovery system much easier through the real-time visible platform. This model suits security-critical environments for owning the features of security, robustness, and controllability. It has guided the construction of an e-government disaster recovery system of China. © 2006 ASCE.

关键词： Disaster prevention

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Implementations of Grid-Based Distributed Parallel Computing

Implementations of Grid-Based Distributed Parallel Computing

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International Multi-Symposiums on computer and Computational Sciences (IMSCCS)

作者： Weiwei Lin Changgeng Guo Deyu Qi Yuehong Chen Zhang Zhili College of Computer Engineering and Science South China University of Technology Guangzhou Guangdong China Department of Information Engineering Xuchang Vocational and Technical College Xuchang China Department of Computer Science Polytechnic Normal University Guangzhou China Center of Network Xuchang University Xuchang China

Grid computing provides new solutions for numerous complex problems. It is an inevitable trend to implement the distributed parallel computing of large-scale problems with the grid. This paper presents two implementations for distributed parallel computing on globus toolkit, a wide-used grid environment. The first implementation, loosely coupled parallel services is used to achieve the large-scale parallel computing that can be broken down into independent sub-jobs by using the corresponding implementation framework, and the second implementation, grid MPI parallel program is able to deal with specialized applications, which can't easily be split up into numerous independent chunks, by using the proposed implementation framework. Finally, two examples of large-scale parallel computing based on proposed implementations are achieved and the experimental results are shown. We make a beneficial attempt to implement distributed parallel computing on grid computing environments

关键词： Parallel processing Grid computing Concurrent computing Large-scale systems computer networks Distributed computing Resource management Application software computer architecture Service oriented architecture

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MEMS and microsystems courses with national and international dissemination

MEMS and microsystems courses with national and internationa...

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113th Annual ASEE Conference and Exposition, 2006

作者： McAfee, Leo Najafi, Khalil Gianchandani, Yogesh Wise, Kensall D. Maharbiz, Michel M. Aslam, Dean Bergstrom, Paul Friedrich, Craig University of Michigan United States IEEE ASEE Department of Electrical Engineering and Computer Science University of Michigan United States MI United States WIMS ERC United States EECS Department College of Engineering Interdisciplinary Professional Degree Program in Integrated Microsystems Department of Electrical Engin-eering and Computer Science Department of Manufacturing Technology Department of Biomedical Engineering AIMBE United States United States National Academy of Engineering United States Electrical Engineering and Computer Science Chemical and Biomedical Engineering Departments University of Michigan Ann Arbor United States Wireless Integrated Microsystems NSF ERC National Nanotechnology Initiative Network Michigan State University United States Engineering Research Center for Wireless Integrated MicroSystems United States Michigan Technological University United States Michigan Technological University Houghton MI United States Microfabrication Facility Michigan Tech. United States

The Wireless Integrated MicroSystems (WIMS) engineering Research center (ERC) has developed a broad comprehensive MEMS and microsystem curriculum suitable for upper-level undergraduate students, graduate students, and industry professionals. Five core courses were in the initial curriculum design. The design had flexibility that invited development of other core courses, as well as related technical electives and breadth electives. The core courses provide instruction in MEMS, Microsystems, major design and laboratory measurements, and societal impact. The course enrollments have been strong. A master of engineering in integrated microsystems degree program was developed so that industry professionals would have a focused set of coursework, while providing flexibility that would permit custom tailoring of the total course package to serve specific needs. Distance education dissemination of the courses as whole courses, or as discrete portions of course materials, was intended to be available;that goal has been realized. The core courses originate at the University of Michigan (UM), and have been distributed to Michigan State University (MSU), Michigan Technological University (MTU), Howard University (HU), University of Puerto Rico - Mayaguez (UPRM), and Western Michigan University (WMU). Rochester Institute of technology (RIT) has used materials from the UM core courses in its offerings. Other institutions that have used the course web-streaming video and course materials are University of Lille, Darmstadt University, and Middle East Technical University. © American Society for engineering Education, 2006.

关键词： Curricula

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