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2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring

作者： Guo, Weisi Chatzigeorgiou, Ioannis Wassell, Ian J. Carrasco, Rolando Digital Technology Group Computer Laboratory University of Cambridge United Kingdom Department of EEandC Engineering University of Newcastle United Kingdom

We derive an adaptive power control method for a collaborative network utilizing partner selection that aims to minimize the frame error rate (FER). We model a decodeand- forward (DF) collaborative network under block fading conditions, which contains M independent users utilizing codes, whose performance can be expressed by a signal to noise (SNR) threshold, such as turbo codes. We show that partner selection can reduce system complexity and power allocation can improve the FER performance. We use both a search method as well as a convex deterministic method to demonstrate our power allocation scheme. This research extends other work in which adaptive power allocation is only applied to limited scenarios. We conclude that power control can greatly benefit a DF collaborative network in a block fading environment. © 2016 The Authors. Published by Elsevier L.

关键词： Power control

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Location-aware downlink and uplink power control and throughput optimization in cellular cognitive radio networks

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Frontiers of Electrical and Electronic engineering in China 2010年第4期5卷 441-448页

作者： Zhiyao MA Wei CHEN Zhigang CAO Khaled Ben LETAIEF State Key Laboratory on Microwave and Digital Communications Tsinghua National Laboratory for Information Science and Technology(TNList)Department of Electronic EngineeringTsinghua UniversityBeijing 100084China Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyHong KongChina

In this paper,we consider throughput maximization in cognitive radio systems with proper power *** particular,we incorporate location-awareness into the power control design and maximize the average throughput of the cognitive *** we shall show,the proposed approach effectively utilizes the“spatial opportunity”to maximize the system throughput,which clearly outperforms traditional power control ***,the proposed approach still exhibits significant throughput gain even considering imperfect position information,with appropriate robust design modifications.

关键词： cognitive radios spectrum hole power control localization optimization

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Towards a methodological approach to identify future M&S standard needs 11

Towards a methodological approach to identify future M&S sta...

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Simulation Winter Conference

作者： Andreas Tolk Osman Balci Saikou Y. Diallo Paul A. Fishwick Xiaolin Hu Margaret Loper Mikel D. Petty Paul F. Reynolds Hessam Sarjoughian Bernard P. Zeigler Engineering Management & Systems Engineering Old Dominion University Norfolk VA USA Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg VA USA Virginia Modeling Analysis & Simulation Center Old Dominion University Suffolk VA USA Digital Arts and Sciences CISE Department University of Florida Gainesville FL USA Computer Science Department Georgia State University Atlanta GA USA Information & Communications Laboratory Georgia Tech Research Institute Georgia Institute of Technology Atlanta GA USA University of Alabama-Huntsville Huntsville AL USA University of Virginia Charlottesville VA USA Center for Integrative Modeling and Simulation Arizona State University Tempe AZ USA RTSync Corp. Rockville MD USA

Although Modeling and Simulation is successfully applied for several decades, the community only established a handful of M&S specific standards. Although the standards were applied enabling worldwide distributed simulation applications, in particular in the training application domain of military simulation systems, the general success of M&S standard efforts and their potential for general applicability has been debated repeatedly during several conferences and workshop. This collection of position statements discusses related questions, such as, “What makes M&S special that we need M&S standards,” “Are M&S standards truly different from Software engineering Standards,” and “What metrics can be used to measure M&S standard success,” and tries to contribute to establishing a methodological approach to identify future M&S standard needs. These position statements have been contributed in preparation of a panel discussion and edited for the supporting proceedings.

关键词： Standards USA Councils Biological system modeling Educational institutions Computational modeling

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Characteristic sets for learning k-acceptable languages

Characteristic sets for learning k-acceptable languages

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International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： A. Jitpattanakul A. Surarerks Engineering Laboratory in Theoretical Enumerable System Department of Computer Engineering Faculty of Engineering Chulalongkom University Bangkok Thailand

ISBN: (纸本)9781424456062;9789746724913

Learnability of languages is a challenging problem in the domain of formal language identification. It is known that the efficiency of a learning technique can be measured by the size of some good samples (representative or distinctive samples) named a characteristic set. Our research focuses on the characteristic set of k-acceptable languages. We proposed a Gold-style learning algorithm called KRPNI which applied the grammatical inference technique to identify a language and expressed it by a k-DFA. In this paper, we study the existence of such characteristic sets. Our theoretical results show that there exists a polynomial characteristic set for a k-acceptable language. It is found that the size of the characteristic set depends on the value of k, instead of the size of an alphabet.

关键词： Polynomials Gold Learning automata Formal languages Inference algorithms Laboratories Size measurement

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An optical artificial nose system for odor classifications based on LED arrays

An optical artificial nose system for odor classifications b...

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International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON

作者： Sumana Kladsomboon Mario Lutz Tawee Pongfay Teerakiat Kerdcharoen Department of Physics and Center of Nanoscience Faculty of Science Mahidol University Bangkok Thailand Materials Science and Engineering Programme Center of Intelligent Materials and Systems (CIMS) Mahidol University Bangkok Thailand Nanoelectronics and MEMS Laboratory National Electronics and Computer Technology Center (NECTEC) 112 Thailand Science Park Pahol Yothin Rd. Pathumthani 12120 Thailand National Nanotechnology Center Mahidol University Thailand

Optical electronic nose (olfactory sensing) technologies have recently become a convenient technique to identify the quality of food and beverage products based on the odor classification. In this paper, we reported an optical-based electronic nose system consisting of thin-film sensing materials, array of light emitting diode (LED), photo-detector and pattern recognition program. The organic mixtures thin film gas sensor was prepared by spin coating of Zinc-2,9,16,23- tetra-tert-butyl 29H,31H-phthalocyanine (ZnTTBPc), Zinc-5,10,15,20-tetra-phenyl-21H,23H-porphyrin (ZnTPP) and manganese(III) 5, 10, 15, 20-tetraphenyl-21H,23H-porphyrin chloride (MnTPPCI) onto a clean glass substrate. The electronic nose system was developed by using the low-cost LED array as a light source. Then the light intensity that is transmitted through the organic thin film during the experiment was detected by the color light to frequency converter device (photo-detector). The ability of this system was tested by using volatile organic compound (VOCs) vapors such as methanol, ethanol, and isopropanol. Principal component analysis (PCA) has been used as the pattern recognition for this electronic nose system. The result confirms that the sensing layer that composed of the three types of organic compounds described the groups of chemical vapors by using the array of LED.

关键词： Photonics Optical variables measurement Optical sensors Methanol

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Observation of a New χb State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS

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Physical Review Letters 2012年第15期108卷 152001-152001页

作者： G. Aad B. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov B. Abi M. Abolins O. S. AbouZeid H. Abramowicz H. Abreu E. Acerbi B. S. Acharya L. Adamczyk D. L. Adams T. N. Addy J. Adelman M. Aderholz S. Adomeit P. Adragna T. Adye S. Aefsky J. A. Aguilar-Saavedra M. Aharrouche S. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. V. Akimov A. Akiyama M. S. Alam M. A. Alam J. Albert S. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev B. M. M. Allbrooke P. P. Allport S. E. Allwood-Spiers J. Almond A. Aloisio R. Alon A. Alonso B. Alvarez Gonzalez M. G. Alviggi K. Amako P. Amaral C. Amelung V. V. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei M-L. Andrieux X. S. Anduaga A. Angerami F. Anghinolfi A. Anisenkov N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli S. Aoun L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce S. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov S. Asai R. Asfandiyarov S. Ask B. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov B. Aubert E. Auge K. Augsten M. Aurousseau G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas M. Backes M. Backhaus E. Badescu P. Bagnaia S. Bahinipati Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker M. D. Baker S. Baker E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov A. Barashkou A. Barbaro Galtieri T. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin T. Barillari M. Barisonzi T. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton V. Bartsch R. L. Bates L. Batkova J. R. Batl Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto ON Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany School of Physics and Astronomy Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Departments of Physics & Astronomy and Chemistry Stony Brook Univ

The χb(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb−1, these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ→μ+μ−. In addition to the mass peaks corresponding to the decay modes χb(1P,2P)→Υ(1S)γ, a new structure centered at a mass of 10.530±0.005(stat)±0.009(syst) GeV is also observed, in both the Υ(1S)γ and Υ(2S)γ decay modes. This structure is interpreted as the χb(3P) system.

关键词： RADIATIVE transitions QUARKONIUMS PROTON-proton interactions COLLISIONS (Nuclear physics) NUCLEAR physics RADIOACTIVE decay ATOMIC transition probabilities

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Stability of different feature selection methods for selecting protein sequence descriptors in protein solubility classification problem

Stability of different feature selection methods for selecti...

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23rd IEEE International Symposium on computer-Based Medical systems, CBMS 2010

作者： Kocbek, Simon Stiglic, Gregor Pernek, Igor Kokol, Peter Research Institute Faculty of Health Sciences University of Maribor Zitna ulica 15 2000 Maribor Slovenia Laboratory for System Design Faculty of Electrical Engineering and Computer Science Smetanova ulica 17 2000 Maribor Slovenia

ISBN: (纸本)9781424491667

Predicting protein solubility has gained lots of intention in the recent years and several descriptors have been defined to describe proteins in these works. Therefore, different feature selection methods have been used for selecting the most important attributes. An empirical study, that aims to explain the relationship between the number of samples and stability of seven different feature selection techniques for protein datasets, is presented. © 2010 IEEE.

关键词： Proteins

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Molecular dynamics and electrical simulation of a novel GaN/4H-SiC hetero-structure optically triggered vertical NPN device

Molecular dynamics and electrical simulation of a novel GaN/...

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International Conference on Advanced Semiconductor Devices and Microsystems

作者： Bose, Srikanta Mazumder, Sudip K. Laboratory for Energy and Switching Electronics System Department of Electrical and Computer Engineering University of Illinois at Chicago 851 South Morgan Street Chicago IL 60607-7053 United States

ISBN: (纸本)9781424485758

In this paper, an atomistic molecular dynamics followed by an electrical simulation study is made to study the turn-on and turn-off characteristics, gain, and breakdown voltage of an optically triggered GaN/4H-SiC hetero-structure vertical NPN device with 1 nm AlN as the buffer layer and the results are compared with the optically triggered all-4H-SiC NPN device. The optically triggered GaN/4H-SiC hetero-structure provides better switching characteristics, however, the breakdown strength of all-4H-SiC NPN device shows better results than GaN/4H-SiC device because of high critical field strength of 4H-SiC material. ©2010 Crown.

关键词： Silicon carbide

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Practical certificateless aggregate signatures from bilinear maps

Practical certificateless aggregate signatures from bilinear...

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作者： Gong, Zheng Long, Yu Hong, Xuan Chen, Kefei Distributed and Embedded Security Group Faculty of Electrical Engineering Mathematics and Computer Science University of Twente Enschede 7500 Netherlands Department of Computer Science and Engineering Shanghai Jiaotong University Shanghai 200240 China National Laboratory of Modern Communications Chengdu 610041 China

Aggregate signature is a digital signature with a striking property that anyone can aggregate n individual signatures on n different messages which are signed by n distinct signers, into a single compact signature to reduce computational and storage costs. In this work, two practical certificateless aggregate signature schemes are proposed from bilinear maps. The first scheme CAS-X reduces the costs of communication and signer-side computation but trades off the storage, while CAS-2 minimizes the storage but sacrifices the communication costs. One can choose either of the schemes by consideration of the application requirement. Compare with ID-based schemes, our schemes do not entail public key certificates as well and achieve the trust Level 3, which imply the frauds of the authority are detectable. Both of the schemes are proven secure in the random oracle model by assuming the intractability of the computational Diffie-Hellman problem over the groups with bilinear maps, where the forking lemma technique is avoided.

关键词： Authentication

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Business modeling with the support of multiple notations in requirements engineering

Business modeling with the support of multiple notations in ...

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14th Pacific Asia Conference on Information systems, PACIS 2010

作者： Bhuiyan, Moshiur Krishna, Aneesh OptInfra Systems Australia Decision Systems Laboratory School of Computer Science and Software Engineering University of Wollongong NSW 2522 Australia Department of Computing Faculty of Science and Engineering Curtin University of Technology Perth WA 6102 Australia

Requirements specification should not be concerned only with the software specification, but should also be able to integrate with the organizational models describing the environment in which the system will function. Agent-oriented conceptual modeling notations such as i* represents an interesting approach for modeling early phase requirements which includes organizational contexts, stakeholder intentions and rationale. Business Process Modeling notations such as BPMN are used to effectively conceptualize and communicate important process characteristics to relevant stakeholders. On the other hand, Unified Modeling Language (UML) is suitable for later phases of requirement capture which usually focus on completeness, consistency, and automated verification of functional requirements for the new system. In this paper, we illustrate the use of a methodology that facilitate and support the combined use of notation for modeling requirement engineering process in a synergistic fashion in a complex project for a large government department. The notations we used were i*, BPMN and UML Use Case.

关键词： Unified Modeling Language

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