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Enhanced Yoking Proof Protocols for RFID Tags and Tag Groups

Enhanced Yoking Proof Protocols for RFID Tags and Tag Groups

引用

International Conference on Advanced Information Networking and Applications Workshops (AINAW)

作者： Jung-Sik Cho Sang-Soo Yeo Suchul Hwang Sang-Yong Rhee Sung Kwon Kim School of Computer Science & Engineering Chung-Ang University Seoul South Korea Department of Computer Science & Communication Engineering Kyushu University Fukuoka Japan Department of Computer System & Engineering Inha Technical Junior College Incheon South Korea Department of Computer Science & Engineering Kyungnam University Masan South Korea

The RFID system is a contactless automatic identification system that identifies tags attached on goods through radio frequency communication. This system is expected to supplant barcode systems, the contact reading technique that is most widely used at present. The RFID system can be applied in a variety of areas. Among those, Ari Juels proposed an environment to prove that a pair of tags has been scanned simultaneously. And he presented a "yoking proof" protocol for this. But the yoking-proof protocol is vulnerable to replay attack. Although modified yoking-proof protocols for alleviating this drawback have been proposed, they are not immune to replay attack, either. In this paper, we analyze problems of existing yoking-proof protocols and present a new protocol, which will make replay attack difficult, based on this analysis. We have also extend this protocol so that it can provide yoking proofs for a tag group, including a multiple number of tags.

关键词： Protocols RFID tags Radiofrequency identification computer science Logistics Privacy Application software computer networks systems engineering and theory Educational institutions

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Sophisticated Computation of Hardware-Software Partition for Embedded Multiprocessor FPGA systems

Sophisticated Computation of Hardware-Software Partition for...

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International Conference on Innovative Computing, Information and Control (ICICIC)

作者： Trong-Yen Lee Yang-Hsin Fan Chia-Chun Tsai Rong-Shue Hsiao Department of Electronic Engineering and Institute of Computer and Communication National Taipei University Taipei Taiwan Information System Section of Library National Taitung University Taitung Taiwan Department of Computer Science and Information Engineering Nanhua University Chiayi Taiwan

ISBN: (纸本)9781424431977;9780769531618

An embedded multiprocessor FPGA system can provide powerful and more functionalities than single processor system. However, the hardware-software partitioning problem is more complex in system design because the system components become escalation. In this paper, we propose a sophisticated computation method (SCM) to solve hardware-software partitioning issues for embedded multiprocessor FPGA systems. The SCM consists of two levels partition which includes processors-fit level and multi-fit level constraints. In processors-fit level, the partitioning results of unsatisfying processor constraint can be rapidly eliminated. Next, multi-fit level constraints compute various system constraints that based on divide-and-conquer and exhaust methods. Experimental results show that our proposed method can rapidly obtain better partitioning results.

关键词： Field programmable gate arrays Software Hardware Power demand Equations Mathematical model Memory management

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Colour number coding scheme for human blood cell

引用

作者： Sharif, J.M. Ngadi, M.A. Latiff, M.S.A. Omar, M.S.S. Hamid, A.B.A. Jamil, M. M. Abdul Universiti Teknologi Malaysia Department of Computer System and Communication UTM Skudai 81310 Malaysia Universiti Teknologi Malaysia Bioinformatics Research Lab. UTM Skudai 81310 Malaysia Universiti Teknologi Malaysia Department of Management UTM Skudai 81310 Malaysia Universiti Tun Hussein Onn Malaysia Department of Electronic Engineering Batu Pahat 86400 Malaysia

ISBN: (纸本)9783540691389

Our perceptive in the scientific datasets has largely relied on numerical and statistical analysis of data from experimental dimension and computer simulation result. In particular, we consider a simulated 3D time-varying model of scientific datasets and examine the temporal correlation among datasets. Our goal is to devise effective visual representations to aid scientists especially biologists in identifying possible correlation associated among it. We proposed a hybrid scheme that used 3D glyphs for orientation, colour scale and codeword for depicting the time and opacity with highlight and de-highlight factors for collaborative events, if possible. Finally, we hope this tool will able to help scientists in their analysis works. © 2008 Springer-Verlag.

关键词： Image coding

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Comparison of wavelength propagation for Free Space Optical communications

Comparison of wavelength propagation for Free Space Optical ...

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International Conference on Electronic Design (ICED)

作者： B.S. Naimullah M. Othman A. K. Rahman S.I. Sulaiman S. Ishak S. Hitam S.A. Aljunid Faculty of Electrical Engineering Universiti Teknologi MARA Sarawak Samarahan Sarawak Malaysia Department of Communication Engineering Faculty of Electrical and Electronic Engineering Universiti Tun Hussein Onn Malaysia Batu Pahat Johor Malaysia School of Computer & Communication Engineering Universiti Malaysia Pedis Kuala Perlis Perlis Malaysia Photonics Laboratory Department of Computer and Communication System Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia

This paper presents the effect of atmospheric attenuation during severe hazy days for free space optical communications. The usage of free space optical communications is still rare in Malaysia due to environment factor. The FSO technology is also known as unguided beam or dasiaoptical wirelesspsila or infrared broadband. This study offers quick preliminary investigation on possible FSO performance based on wavelength selection before final commissioning and installation at site. Thus, FSO installers could make quick judgment before giving recommendation of a suitable wavelength to the customers. Preliminary evaluation of system performance of system performance is done by using local weather data obtained from metrological department. Current study among designers and FSO users show that 1550 nm light produce less atmospheric attenuation in the transmission under all weather conditions. In this study, a suitable wavelength for FSO system is found for a particular site in low visibility. The best wavelength selection would result in optimized quality of FSO transmission in hazy conditions.

关键词： Optical propagation Optical fiber communication Optical attenuators system performance Optical scattering Hardware Space technology Optical sensors Optical computing Optical beams

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A Proposal of Heart Diseases Diagnosis Method Using Analysis of Face Color

A Proposal of Heart Diseases Diagnosis Method Using Analysis...

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International Conference on Advanced Language Processing and Web Information Technology (ALPIT)

作者： Bong-hyun Kim Se-hwan Lee Dong-uk Cho Sang-Young Oh Department of Computer Engineering Hanbat National University Daejeon South Korea Department of Information & Communication Engineering Chungbuk National University Chungbuk South Korea Department of Management Information System Cheongju University Chungbuk South Korea

The patients of cardiovascular diseases is being on the rise due to the environmental changes and other several causes so that the death toll due to the diseases belongs to the big 3 causes of adults death in Korea. To be helpful to the prevention of the heart diseases, we hope to diagnose the cardiovascular diseases via the web applying the examination by the eye among the diagnostic skills of oriental medicine to the preventive activities with IT technology. In this article, we will propose the methodology that conduct the color compensation of the face image capture and extract the facial region and then extract the five sensory organs including the nose area in the whole target system. Since the colors of the libs and the center part of the forehead are the critical factors to diagnose heart diseases, we will discuss how to extract these areas automatically and to extract the colors of these in this article.

关键词： Image color analysis Heart Diseases Face Biomedical imaging Lighting Medical diagnostic imaging

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RC4A stream cipher for WLAN security: A hardware approach

RC4A stream cipher for WLAN security: A hardware approach

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International Conference on Electrical and computer engineering (ICECE)

作者： Abdullah Al Noman Roslina b. Mohd. Sidek Abdul Rahman b. Ramli Liakot Ali Department of Electrical and Electronic Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Quantum Information Department MIMOS Berhad Kuala Lumpur Malaysia Department of Computer and Communication System Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Institute for Information and Communication Technology Dhaka Bangladesh

Wireless networks are on the cutting edge of modern technology and rapidly gaining popularity in todaypsilas world due to their excellent usability. For secure wireless data transmission, Wired Equivalent Privacy (WEP), IEEE 802.11 standard defined security protocol, is employed. WEP has a potential limitation that stems from its adaptation of RC4 stream cipher algorithm. As a result, there is a pressing need for new WLAN security measure. Therefore, this paper presents hardware implementation of RC4A stream cipher and proposes to replace RC4 in WLAN security scheme, due to weakness of *** design of the cipher was implemented by Verilog HDL. For hardware implementation of the design, an Altera Field Programmable Gate Array (FPGA) device, EP20K200EFC484-2X from APEX family, APEX 20KE, was used.

关键词： Wireless LAN Data security Hardware design languages Field programmable gate arrays Wireless networks Usability communication system security Data communication Data privacy Wireless application protocol

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Spatio-temporal Application for Collaborative Issues in Bioinformatics Datasets

Spatio-temporal Application for Collaborative Issues in Bioi...

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International Conference on computer Science and Software engineering

作者： J.M. Sharif M.S. Latiff M.A. Ngadi A.B.A. Hamid M.S.S. Omar M.M.A. Jamil Department of Computer System and Communication Universiti Teknologi Malaysia Malaysia Department of Management Universiti Teknologi Malaysia Malaysia Bioinformatics Research Lab Universiti Teknologi Malaysia Malaysia Department of Electronics Engineering Universiti Tun Hussein Onn Malaysia Malaysia

ISBN: (纸本)9781424439027

Scientists has largely understand the structure of glass and the ion trajectories has largely relied on statistical analysis of data collected from experimental measurement and computer simulation. Invariably, the details of the structure-transport relationships in the data have been ignored in favor of ensemble average. In this works, we present a visual study of such relationships using surface-based visualization techniques. In particular, we consider a simulated three-dimensional (3D) time-varying model of ion trajectories, and examine the spatio-temporal collaborative among mobile ions. Our goal is to devise effective visual representations to aid scientists especially biologists in identifying possible collaborative behaviors and their spatial and temporal association among complex and seemingly chaotic atom movements in ion trajectories. We propose a hybrid scheme that used 3D glyphs for orientation, color scale and codeword for depicting the time and opacity with highlight and de-highlight factors for collaborative ion dynamic events.

关键词： Collaboration Bioinformatics Biological system modeling Collaborative work Application software Glass Statistical analysis computer simulation Data visualization Computational modeling

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New multi-scale medical image segmentation based on fuzzy c-mean (FCM)

New multi-scale medical image segmentation based on fuzzy c-...

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IEEE Conference on Innovative Technologies in Intelligent systems and Industrial Applications (CITISIA)

作者： M. A. Balafar ABD.Rahman Ramli M.Iqbal Saripan Rozi. Mahmud Syamsiah Mashohor Molod. Balafar Department of Computer & Communication System Faculty of Engineering UPM Serdang Selangor Darul Ehsan Malaysia Universiti Putra Malaysia Serdang Selangor MY Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia

ISBN: (纸本)9781424424160

Image segmentation is a key process in computer vision and image process applications. Accurate segmentation of medical images is very essential in medical applications but it is very difficult job due to noise and in homogeneity that are usual of medical images. In this paper a new method, based on FCM, is proposed to make FCM more robust against noise. Multi-scale images are obtained by smoothing input image in different scales. FCM is applied to multi-scale images from high scale to low scale. First FCM is applied to image with highest scale. Then in each scale, cluster centers of previous scale are used to initialization membership for current scale. Moreover, in FCM, neighborhood attraction is used to more decrease effect of noise in clustering. Experimental result shows effectiveness of new method.

关键词： images image segmentation multi-scale Imagery (Psychotherapy) Scale formation Noise Medical Noise effects Medical imaging computer vision new methods smoothing Scale scales Image

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MRI segmentation of Medical images using FCM with initialized class centers via genetic algorithm

MRI segmentation of Medical images using FCM with initialize...

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International Symposium on Information Technology, ITSim

作者： M. A. Balafar Abd Rahman Ramli M. Iqbal Saripan Rozi Mahmud Syahmsiah Mashohor Hakimeh Balafar Department of Computer & Communication System Faculty of Engineering UPM Selangor Malaysia Faculty of Medicine Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Faculty of Medicine Tabriz University of Medicine Tabriz Iran

Image segmentation is a critical stage in many computer vision and image process applications. Accurate segmentation of medical images is very essential in Medical applications but it is very difficult job due to noise and in homogeneity. Fuzzy C-Mean (FCM) is one of the most popular Medical image clustering methods. We noticed that for some images, FCM is sensitive to initialization of centre of clusters. This article introduced a new method based on the combination of genetic algorithm and FCM to solve this problem. The genetic algorithm is used to find initialized centre of the clusters. In this method, the centre is obtained by minimizing an object Function. This object Function specifies sum of distances between each data and their cluster centres. Then FCM is applied with to the case. The experimental result demonstrates the effectiveness of new method by able to initialize centre of the clusters.

关键词： Image segmentation Genetic algorithms Biomedical imaging Clustering algorithms Distance measurement Pixel Noise

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Coupled-ring reflector laser diodes composed of squared ring waveguides

Coupled-ring reflector laser diodes composed of squared ring...

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IEEE/LEOS International Conference on Optical MEMS

作者： Suhyun Kim Doo Gun Kim Nadir Dagli Youngchul Chung Young Tae Byun Intelligent System Research Division Korea Institute of Science and Technology Seoul South Korea Department of Electronics and Communication Engineering Kwangwoon University Seoul South Korea School of Electronic and Electrical Engineering Chung Ang University Seoul South Korea Department of Electrical and Computer Engineering University of California Santa Barbara USA

Coupled-ring reflector laser diodes composed of squared ring waveguides are fabricated and it is demonstrated that the laser diodes exhibit single mode operation and 15 nm tuning range with SMSR exceeding 25 dB.

关键词： Semiconductor lasers Optical ring resonators Optical waveguides Ring lasers Waveguide lasers Semiconductor diodes Mirrors

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