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Analysis of a software Bluetooth modem based on a DSP implementation 基于DSP的软件蓝牙调制解调器实现分析
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.19
D. S. Gómez, J. Villarruel
{"title":"Analysis of a software Bluetooth modem based on a DSP implementation","authors":"D. S. Gómez, J. Villarruel","doi":"10.1109/CONIEL.2005.19","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.19","url":null,"abstract":"Wireless modems are a key part of mobile devices in adequate transmissions according to QoS. In order to adapt to different wireless standards, future radios will need to be implemented in software form. Thanks to DSP and wireless technologies, today software modem radios for 2 and 2.5 G have already been implemented. In the Software Radio Defined project we aim to combine several wireless communications protocols like HiperLan/2, GPS and Bluetooth. Here, we have analyzed a GFSK modem used in Bluetooth technology. This work analyzes the performance of Bluetooth (GFSK) modulation and demodulation with an integrate-and-dump decision algorithm. A simulation model was built to measure the performance of each of these stages. A key feature of this modem is that it is designed thinking of a future DSP implementation. The modem fulfills the Bluetooth specifications based on the IEEE 802.15 standard.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133644906","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
Distance transform approximation with a multilayer perceptron for 2D image recognition 基于多层感知器的距离变换近似二维图像识别
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.37
Héctor-Uriel Rodríguez-Ponce, R. Rosas-Romero
{"title":"Distance transform approximation with a multilayer perceptron for 2D image recognition","authors":"Héctor-Uriel Rodríguez-Ponce, R. Rosas-Romero","doi":"10.1109/CONIEL.2005.37","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.37","url":null,"abstract":"This paper presents a multilayer perceptron which approximates the distance transform of 2D images, specifically capital vowels. Approximation of images' distance transforms are used with the purpose of fast recalling in well handwritten capital vowels within a square of 64 /spl times/ 64 pixels. An architecture that has both fast training and good approximation of distance transform is described. Possible improvements for further research are described too.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133670807","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
Bin-packing using genetic algorithms 用遗传算法打包
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.25
Armando Ponce-Pérez, Arturo Pérez-García, V. Ayala-Ramírez
{"title":"Bin-packing using genetic algorithms","authors":"Armando Ponce-Pérez, Arturo Pérez-García, V. Ayala-Ramírez","doi":"10.1109/CONIEL.2005.25","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.25","url":null,"abstract":"We present in this paper a genetic algorithm (GA) approach to solve 2D bin packing problems of polygonal shapes on a rectangular canvas. We present the way to encode shape parameters and a fitness function based on a the medial axis transform (MAT) to evaluate individuals of a genetic algorithm population. Some test and results of our experimentation are presented.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132126718","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: 12
Designing a CMOS differential pair CMOS差分对的设计
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.36
F. Sandoval-Ibarra, E. Vargas-Calderón, J. A. Herrera-Barragán, J. M. García-León
{"title":"Designing a CMOS differential pair","authors":"F. Sandoval-Ibarra, E. Vargas-Calderón, J. A. Herrera-Barragán, J. M. García-León","doi":"10.1109/CONIEL.2005.36","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.36","url":null,"abstract":"Taking into account portable applications, where users are requiring larger durability of a single battery, in this paper the design of a linear differential-pair is presented. This circuit (hereafter named basic-block) is sized according to the technological design rules of a 1.2 /spl mu/m CMOS fabrication process. Even when the basic-block is biased with 5 V, and the same is true for the whole system, the power supply is actually a 1.5 V battery. In this research we are assuming that the maximum driven current is of the order of 1 mA.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134349921","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
VLSI architecture for the M algorithm suited for detection and source coding applications VLSI体系结构为M算法，适合于检测和源编码应用
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.69
L. F. G. Pérez, E. Boutillon, A. D. García, J. Villarruel, Reynaldo Félix Acuña
{"title":"VLSI architecture for the M algorithm suited for detection and source coding applications","authors":"L. F. G. Pérez, E. Boutillon, A. D. García, J. Villarruel, Reynaldo Félix Acuña","doi":"10.1109/CONIEL.2005.69","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.69","url":null,"abstract":"Trellis source coders consist of a trellis search algorithm as the encoder and a finite state machine as the decoder. The search algorithm finds the best sequence of codewords in the trellis representing the source sequence. The optimum trellis search is the Viterbi algorithm (VA). However for source coding applications, it becomes prohibitively complex. Hence, suboptimum search algorithms must be considered. The M algorithm is a suboptimum search whose performance is close to the optimum system. This algorithm retains the best M paths at every instant. Conventional architectures of this algorithm are impractical when the number of retained paths is large. In this paper new hardware architectures based on VA implementations are presented. Dividing the M algorithm into path metric updating and trace-back based survivor memory management procedures, efficient architectures can be achieved contributing to a significant reduction in the hardware complexity, which allows quantization systems with larger reproduction codebooks.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126259504","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
Object recognition and sorting by using a virtual Cartesian robot with artificial vision 利用具有人工视觉的虚拟笛卡儿机器人对物体进行识别和分类
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.54
David Salomón García Palmero, Apolonio Ata Pérez, M. M. Ortiz, Francisco Javier Amaro Sánchez, F. Rodríguez-Henríquez
{"title":"Object recognition and sorting by using a virtual Cartesian robot with artificial vision","authors":"David Salomón García Palmero, Apolonio Ata Pérez, M. M. Ortiz, Francisco Javier Amaro Sánchez, F. Rodríguez-Henríquez","doi":"10.1109/CONIEL.2005.54","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.54","url":null,"abstract":"The paper presents a system able to recognize the 26 capital letters of the Spanish alphabet. The letters are 5/spl times/3 cm black-painted objects randomly distributed in different places and orientations over a flat-surface white-painted table. We utilize a webcam device plus VFW video libraries in order to obtain the images corresponding to each letter. Thereafter, in order to be able to identify the letters, we use several digital signal processing (DSP) algorithms. Once the letter-recognition phase is finished, we command a virtual Cartesian robot to reorder the letters so that any arbitrary user preselected text may be formed and read. First, the quality of the image so obtained is improved by digital processing and then we perform a pattern recognition algorithm by using a method that we call digital signature based on a quadtrees image processing method. In addition to performing the letter recognition phase, we estimate the exact position and orientation of the given letter on the table. With this information, our virtual robot can proceed to reorder the letter as prescribed by the user. In order to visualize and optimize the movements of the Cartesian robot, we developed a 3D simulator based on the GLScene OpenGL library for Delphi.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126302947","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: 4
BPIMS-WS: brokering architecture for business processes integration in B2B e-commerce BPIMS-WS: B2B电子商务中业务流程集成的代理体系结构
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.26
G. Alor-Hernández, C. S. Hernández, J. O. Olmedo-Aguirre
{"title":"BPIMS-WS: brokering architecture for business processes integration in B2B e-commerce","authors":"G. Alor-Hernández, C. S. Hernández, J. O. Olmedo-Aguirre","doi":"10.1109/CONIEL.2005.26","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.26","url":null,"abstract":"Web services are designed to provide interoperability among diverse applications. Nowadays, a growing number of commercial enterprises are redefining their business processes under this technology. The platform and language independence of Web services programming interfaces enables the seamless integration of heterogeneous Web based-systems. A business processes integration and monitoring system (BPIMS) has been developed to automate, integrate and monitor many of the enterprise business processes described as Web services (WS). Our main contribution consists in a brokering architecture to automate many of the enterprise business processes without resorting to large investments in software development and deployment. Our brokering architecture is based on a four-layer design that meets crucial design aspects like abstraction, scalability, interoperability and greater dynamism.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115527222","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: 8
Traducing software voice-pattern-detection applications into hardware systems [for traducing read transducing] 将软件语音模式检测应用引入硬件系统[用于引入读导]
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.67
Carlos Nieto-Granda, Sandra Díaz-Pier, Carlos Ortega-Otero, Ricardo Swain Oropeza
{"title":"Traducing software voice-pattern-detection applications into hardware systems [for traducing read transducing]","authors":"Carlos Nieto-Granda, Sandra Díaz-Pier, Carlos Ortega-Otero, Ricardo Swain Oropeza","doi":"10.1109/CONIEL.2005.67","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.67","url":null,"abstract":"Most voice-controlled systems sold are based on an expensive software pattern detection technology. We have developed a pure hardware-based system able to detect chains of letters and sounds to control the house environment with light, temperature and door locking devices among others. This application is divided into three parts, one for sensing and transducing, another for pattern detection and a final stage to generate an output. The first one is achieved roughly, using an electret microphone as the main sensing element. The second is a modular section in which we use PLLs and simple circuitry to detect the letters. Finally, the third involves power stages and signal generation for specific applications. Our application can be integrated to software systems to increase its visual appeal and interactivity with the user. The results gave us ideas to implement this kind of hardware interface in museums and augmented reality systems and improved with computer graphics interfaces in which, even if the low cost gain is lost, novelty and interactivity are surpassed. We have presented a new improved commercial system using analog and digital electronics to produce cheaper and innovative devices.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126807055","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
Achieving confidentiality security service for CAN 实现CAN的保密安全服务
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.13
M. Chávez, Carlos Hernández Rosete, F. Rodríguez-Henríquez
{"title":"Achieving confidentiality security service for CAN","authors":"M. Chávez, Carlos Hernández Rosete, F. Rodríguez-Henríquez","doi":"10.1109/CONIEL.2005.13","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.13","url":null,"abstract":"The paper addresses the security service infrastructure included in the controller area network (CAN) standard, proposing the incorporation of a confidentiality service for that kind of network. Regarding security, CAN currently supports only a special kind of data transfer service, namely safety, for error detection, signalling, and self checking. Nevertheless, as CAN has become more diverse, complex and integrated into other kinds of networks, it must provide higher security services, such as confidentiality, especially for its bus, which is the most attack-prone point on CAN. Taking into account, on one hand, the security services defined by ISO and, on the other hand, the security services defined by CAN, the paper proposes to incorporate a confidentiality service to CAN based on RC4, which is a lightweight symmetric stream cipher algorithm. The paper then presents the clock cycles required for encrypting different data sizes of the CAN frame in the 87C196CB, which is a microcontroller with integrated CAN 2.0 serial interface.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125492207","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: 23
Collision detection using sphere-tree construction 使用球体树构造的碰撞检测
15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05) Pub Date : 2005-02-28 DOI: 10.1109/CONIEL.2005.29
Antonio Benítez, Maria del Carmen Ramírez, D. Vallejo
{"title":"Collision detection using sphere-tree construction","authors":"Antonio Benítez, Maria del Carmen Ramírez, D. Vallejo","doi":"10.1109/CONIEL.2005.29","DOIUrl":"https://doi.org/10.1109/CONIEL.2005.29","url":null,"abstract":"Fast and accurate collision detection between general geometric models is a fundamental problem in modeling, robotics, manufacturing and computer-simulated environments. Most of the earlier algorithms are either restricted to a class of geometric models, say convex polytopes, or are not fast enough for practical applications. We present a new algorithm for collision detection between general polygonal models. The algorithm makes use of hierarchical representations along with frame to frame coherence to rapidly detect collisions. It has been implemented as part of a motion planning package. In practice, it can accurately detect the contacts between large geometries composed of thousands of polygons at interactive rates.","PeriodicalId":367791,"journal":{"name":"15th International Conference on Electronics, Communications and Computers (CONIELECOMP'05)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124681990","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: 25
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