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A secure dynamic cryptographic and encryption protocol for wireless networks 一种安全的无线网络动态密码和加密协议
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167898
P. Yu, U. Pooch
{"title":"A secure dynamic cryptographic and encryption protocol for wireless networks","authors":"P. Yu, U. Pooch","doi":"10.1109/EURCON.2009.5167898","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167898","url":null,"abstract":"With the fast growth of wireless networking in population, security became an essential issue for data privacy. Encryption mechanisms relying on static key structure, such as WEP (802.11) and TKIP (802.1x), are vulnerable to key cracking by capturing wireless packets. Although new standards have been developed to fulfill this gap, there is still a lack of a stable security protocol. In this paper, we present a light-weight and solid i-key encryption protocol to enhance the security of wireless communication. With this dynamic re-keying mechanism, only valid clients can decrypt the ciphertext and reveal the message by using the unique secret i-key they have to prevent the sensitive data from being accessed by unauthorized recipients. In addition, test results indicate that i-key protocol can perform efficiently in different wireless environment.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126596418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Robust UDE-based control of uncertain nonlinear state-delay systems 基于ude的不确定非线性状态延迟系统鲁棒控制
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167745
A. Kuperman, Qing-Chang Zhong
{"title":"Robust UDE-based control of uncertain nonlinear state-delay systems","authors":"A. Kuperman, Qing-Chang Zhong","doi":"10.1109/EURCON.2009.5167745","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167745","url":null,"abstract":"In this paper, a robust control strategy for uncertain nonlinear continuous-time plants with disturbances and state delays is proposed. The strategy is based on the uncertainty and disturbance estimator (UDE). Both cases with known and unknown delay are considered. In the case of an unknown time delay, the term with the delay is treated as an additional disturbance to the system. Both nonlinear and linear control algorithms are proposed. The algorithms show excellent tracking and disturbance rejection performance. Simulations are given to show the effectiveness of the UDE-based control. State delays, uncertainty and disturbance estimator (UDE), robust control, nonlinear plants","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130737145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Inefficient WiFi adapter of wireless mobile devices - Problem solving by artifacts prebuffering using mobile database cache and secured wireless connection 无线移动设备的低效WiFi适配器。通过使用移动数据库缓存和安全无线连接的工件预缓冲来解决问题
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167654
O. Krejcar
{"title":"Inefficient WiFi adapter of wireless mobile devices - Problem solving by artifacts prebuffering using mobile database cache and secured wireless connection","authors":"O. Krejcar","doi":"10.1109/EURCON.2009.5167654","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167654","url":null,"abstract":"The paper deals with a problem of inefficient WiFi adapter of wireless mobile devices and a possibility to solve this problem by a prebuffering of selected artifacts. The basics are in a model of data prebuffering based system enhancement for locating and tracking users inside the buildings. The developed framework joins the concepts of location and user tracking as an extension for a new information system. The framework uses a WiFi network infrastructure to let a mobile device determine its indoor position. User location is used for data prebuffering and pushing information from server to user's PDA. All server data is saved as artifacts (together) with its position information in building. The accessing of prebuffered data on mobile device can highly improve response time needed to view large multimedia data. I tested our solution on created facility management information system with testing collection of about hundred large size artifacts. On mobile device the SQL Server CE database is used as a cache. All data artifacts are transferred from PDPT Server database to mobile embedded device database throw secured wireless connection standard EAP-TLS.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131104227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Embedded server with Wake on LAN function 具有局域网唤醒功能的嵌入式服务器
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167657
M. Popa, T. Slavici
{"title":"Embedded server with Wake on LAN function","authors":"M. Popa, T. Slavici","doi":"10.1109/EURCON.2009.5167657","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167657","url":null,"abstract":"The number of IT equipments is rapidly and continuously increasing. But it leads also to high energy consume. Various solutions are concerned for minimizing the energy consumption. Wake on LAN is one of these solutions. It is a function through which PCs and other Internet connected equipments and devices are remotely woken up from sleeping states when they need to work. This paper presents a novel implementation of the Wake on LAN function. An embedded system directly connected to Internet is used for waking up PCs or other equipments and devices connected to Internet.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133506030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Propagation of transverse-magnetic waves in a waveguide with anisotropic and magnetoactive modulated insert eurocon2009 具有各向异性和磁有源调制的波导中横向电磁波的传播[j]
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167607
E. Gevorkyan
{"title":"Propagation of transverse-magnetic waves in a waveguide with anisotropic and magnetoactive modulated insert eurocon2009","authors":"E. Gevorkyan","doi":"10.1109/EURCON.2009.5167607","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167607","url":null,"abstract":"Propagation of transverse-magnetic (TM) waves in the waveguide with arbitrary cross section, filled with periodically modulated anisotropic and magnetoactive medium is considered. The differential equation for the potential of TM field is found from the Maxwell equations. This equation is solved with help of method, developed in our earlier articles [1–3], [6–7]. The analytical expressions for the magnetic and electric vectors of the TM field are found in the region of weak interaction between the signal wave and the modulation wave in the first approximation for small modulation indexes of the insert. The frequency of strong (resonance) interaction between the signal wave and the modulation wave is expressed in an analytic form.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133664829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The gauss elimination from the circuit theory point of view: Diagonal nodal equivalent 从电路理论的角度看高斯消去:对角节点等效
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167641
S. Vergura
{"title":"The gauss elimination from the circuit theory point of view: Diagonal nodal equivalent","authors":"S. Vergura","doi":"10.1109/EURCON.2009.5167641","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167641","url":null,"abstract":"Nodal analysis is known to be the most used method to write the solving equations of electrical circuits. The matrix equation is usually solved by using Gauss Elimination (GE). This paper studies in depth the GE from a circuit theory point of view. It results that each step of GE constitutes a modification of the assigned circuit. The forward elimination can be considered as a successive removal of the independent nodes by introducing voltage-controlled current sources, while back substitution leads to independent elementary circuits. The whole procedure can be systematically applied; in this way, given a circuit, it is possible to switch to a modified circuit, by means of circuital transformations corresponding to mathematical ones. Similar approach can be used also when the mesh analysis is used to solve a circuit. In this case the forward elimination can be considered as a successive removal of the independent meshes by introducing current-controlled voltage sources.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132333932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Active and reactive power control of a doubly fed induction generator for wind applications 风电用双馈感应发电机的有功和无功控制
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167927
Brahim Nait-kaci, M. Doumbia, K. Agbossou, A. Yousif
{"title":"Active and reactive power control of a doubly fed induction generator for wind applications","authors":"Brahim Nait-kaci, M. Doumbia, K. Agbossou, A. Yousif","doi":"10.1109/EURCON.2009.5167927","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167927","url":null,"abstract":"This paper presents analytical study and simulation results of a grid-connected doubly fed induction machine for wind applications. The modelling of the system considers machine side converter and its control strategy. In order to decouple the active and reactive powers generated, stator-flux-oriented vector control method is applied. Subsynchronous and supersynchronous operating conditions were simulated. Controllers design methodology is presented and active and reactive powers control was verified. The Matlab/Simulink software was used for the simulation purpose. Different operating conditions of a 7.5 kW generator are investigated to validate the effectiveness of control circuit.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132573664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Design of ultrasonic motion analysis system for estimating segment's stabilization during dynamic condition 基于超声运动分析系统的管片动态稳定性评估
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167617
N. Hemmati, P. Rangraz
{"title":"Design of ultrasonic motion analysis system for estimating segment's stabilization during dynamic condition","authors":"N. Hemmati, P. Rangraz","doi":"10.1109/EURCON.2009.5167617","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167617","url":null,"abstract":"While the function of central and peripheral nervous system decreases (caused by aging, vestibular deficiency or stroke), maintaining of body stability get hard. Studies indicate that in a dynamic state such as walking, coordination of axial segments head, thorax, and pelvis is disrupted in pathologic conditions. In recent years goniometry and cinematography have been widely used to measure active or passive range of motion (ROM) in asymptomatic adults. The aim of this investigation is designing and implementing a new method for estimating the level of impairment in stability of segment and the improvement after treatment by measuring quality or quantity of movement among axial segments. Transmitter sensors mounted on body periodically send ultrasonic burst signals and other 3 sensors arranged on a T-shape Mechanical base receive the three dimensional coordinate of these transmitters. After sending 3D coordination data to PC via serial port, a complex visual basic software separately calculates angular dispersion, rate and acceleration for each segment. Also this special software calculates the stabilization parameters among segments such as AI (anchoring index) and cross-correlating between head and trunk coordinates.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132703992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Visual based lane following for non-holonomic mobile robot 基于视觉的非完整移动机器人车道跟踪
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167741
A. Rezoug, M. Djouadi
{"title":"Visual based lane following for non-holonomic mobile robot","authors":"A. Rezoug, M. Djouadi","doi":"10.1109/EURCON.2009.5167741","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167741","url":null,"abstract":"This paper aims to contribute in mobile robots endowment with autonomy when accomplishing robotic tasks. The problem treated concerns path following by non-holonomic mobile robot (pioneer II DX) using visual data coming from CCD camera mounted on the latter. The current advancing path is approximated by a fuzzy function. The obtained experimental results confirm the effectiveness of the proposed approach.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Calculation of electric and magnetic field strengths produced by a direct current traction network 直流牵引网络产生的电场和磁场强度的计算
IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI: 10.1109/EURCON.2009.5167737
S. M. Apollonskii, A. N. Gorsky
{"title":"Calculation of electric and magnetic field strengths produced by a direct current traction network","authors":"S. M. Apollonskii, A. N. Gorsky","doi":"10.1109/EURCON.2009.5167737","DOIUrl":"https://doi.org/10.1109/EURCON.2009.5167737","url":null,"abstract":"This paper presents analytical relationships (dependences) allowing electric and magnetic field strengths produced by a multi-line traction network of a direct current electrified railway to calculate. The calculation results for a single-line traction network are to the experimental ones compared.","PeriodicalId":256285,"journal":{"name":"IEEE EUROCON 2009","volume":"45 17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115910104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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