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2007 International Conference on Information and Communication Technology最新文献

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Performance Analysis of A Subcarrier Multiplexed WDM Transmission System Considering SRS and XPM Induced Crosstalk 考虑SRS和XPM诱导串扰的副载波复用WDM传输系统性能分析
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375367
M. S. Faruk, S. Majumder
{"title":"Performance Analysis of A Subcarrier Multiplexed WDM Transmission System Considering SRS and XPM Induced Crosstalk","authors":"M. S. Faruk, S. Majumder","doi":"10.1109/ICICT.2007.375367","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375367","url":null,"abstract":"In this paper, crosstalk induced by cross phase modulation (XPM) and stimulated Raman scattering (SRS) in a multiwavelength subcarrier multiplexed transmission system is analyzed. Then combined effect of SRS and XPM induced crosstalk in the system performance is investigated. It is found that SRS dominates at lower modulation frequency with large channel spacing while XPM at higher modulation frequency and lower channel spacing. BER performance is also mentioned in presence of SRS and XPM crosstalk for per wavelength channel capacity of 10 Gb/s. Maximum allowable power for a BER of 10-9 as a function of wavelength channel separation is also presented.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"36 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120852042","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
Recognition of Conjunctive Bangla Characters by Artificial Neural Network 基于人工神经网络的孟加拉连词识别
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375350
A.R. Forkan, S. Saha, M. Rahman, A. Sattar
{"title":"Recognition of Conjunctive Bangla Characters by Artificial Neural Network","authors":"A.R. Forkan, S. Saha, M. Rahman, A. Sattar","doi":"10.1109/ICICT.2007.375350","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375350","url":null,"abstract":"This paper is concerned with optical character recognition (OCR) system for Bangla conjunctive characters. A method is proposed giving emphasis on the identification of the characters using the proposed methodology. Here generalization is achieved by preprocessing the characters before presenting them to the system for classification. The pre-processing systematically functions isolating the characters from BMP images, as well as noise removal, scaling and binary image conversion. The method uses a flexible matching between sample data and training data components applying Multi-layered Feed-forward Artificial Neural Network. A number of parameters of Neural Network are estimated so that the system performance is improved in comparison with normal training. Classification of character is defined as error minimization among the possible training set. Also, a measure of the amount of distortion for this training is given. Application of Artificial Neural Network in character recognition has made the system faster with optimum performance.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128711790","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: 11
Fuzzy Features Extraction from Bangla Handwriten Character 孟加拉语手写体的模糊特征提取
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375345
M. M. Hoque, S. Rahman
{"title":"Fuzzy Features Extraction from Bangla Handwriten Character","authors":"M. M. Hoque, S. Rahman","doi":"10.1109/ICICT.2007.375345","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375345","url":null,"abstract":"Character is the fundamental attribute for writing and reading a language. Character recognition is the process to classify the input character according to the predefined character class. Fuzzy logic has proved to be a powerful tool to represent imprecise and irregular patterns. The most tedious job associated with fuzzy logic is the extraction of meaningful features. This paper describes a method to efficiently detect the meaningful fuzzy features including global features, geometric features and positional features from handwritten Bangla character respectively. We have tested our design for different types of Bangla handwritten alphabets in various style and we got successful features extraction results for most of the test cases.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131605961","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
Automatic Extraction of Features from Retinal Fundus Image 视网膜眼底图像特征的自动提取
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375340
M. Dewan, M. Arefin, M. Ullah, O. Chae
{"title":"Automatic Extraction of Features from Retinal Fundus Image","authors":"M. Dewan, M. Arefin, M. Ullah, O. Chae","doi":"10.1109/ICICT.2007.375340","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375340","url":null,"abstract":"Vessel, fovea and optic disk are the three most important features of human retina that are frequently used for retinal image registration, illumination correction as well as for pathology detection inside retina. In this paper, we present a fully automated approach that can detect and localize these organs from retinal fundus image effectively. For vessel detection, we have adopted an exploratory tracing algorithm that has employed directional templates to trace the vessels. After that, we have employed a novel method that utilizes circular matched filter to compute cross-correlation to detect and localize the optic disk and fovea accurately. Since the circular matched filter cross-correlates with a pre-computed ROI, it reduces the computational cost for matching significantly. The proposed method dynamically approximates the diameter of optic disk and fovea regions, and eventually approximates the shapes of these organs as well. Extensive results of our experiment show that the proposed method is effective and encouraging.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133247755","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: 11
Implementing and Testing of Spatio-temporal and Object-relational Biodiversity Data Model 生物多样性时空与对象关系数据模型的实现与测试
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375361
M. T. Wahid, M. Kamruzzaman
{"title":"Implementing and Testing of Spatio-temporal and Object-relational Biodiversity Data Model","authors":"M. T. Wahid, M. Kamruzzaman","doi":"10.1109/ICICT.2007.375361","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375361","url":null,"abstract":"STORe-Biodi (spatio-temporal object-relational data model for biodiversity) developed based on object-relational modeling approach and intends to store biodiversity information. The unique feature of the STORe-Biodi integrates deserve types of data including taxonomic characteristics (flora, fauna), spatial distribution, and temporal data. Paper also describes the STORe-Biodi, its realization in an object-relational architecture, and outlines of the benefit we perceived in experiments i.e. efficient retrieval, better support of space and time, complexity handling, data integrity, cost, data redundancy and finally discusses the performance of the model based on outcome of the research.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134363342","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
Performance Analysis of Ultra-Wideband System in Presence of IEEE802.11a and UMTS/WCDMA Frequency Bands IEEE802.11a和UMTS/WCDMA频段下超宽带系统性能分析
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375355
R. Saeed, S. Khatun, B. Ali, M. Khazani A.
{"title":"Performance Analysis of Ultra-Wideband System in Presence of IEEE802.11a and UMTS/WCDMA Frequency Bands","authors":"R. Saeed, S. Khatun, B. Ali, M. Khazani A.","doi":"10.1109/ICICT.2007.375355","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375355","url":null,"abstract":"In order to evaluate the effects of cumulative interference from multiple UWB devices to victim narrowband systems (i.e. IEEE802.11a and UMTS/WCDMA) in its overlay band, an analysis on the power spectral density (PSD) of UWB signal is presented. In this paper, the performances are studied through the bit-error-rate as a function of signal-to-noise ratio as well as signal-to-interference power ratio using computer simulation exploiting realistic channel model (i.e. modified Saleh-Valenzuela (S-V) model). Several modifications of a generic Gaussian pulse waveform with a length in the order of nanoseconds were used to generate UWB spectra. Different kinds of pulse modulation (i.e. antipodal and orthogonal) schemes have been also taken in account.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115317622","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: 2
Sinr Performance of Multicarrier CDMA System in Frequency-Selective Rayleigh Fading Channels 多载波CDMA系统在频率选择瑞利衰落信道中的信噪比性能
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375375
R. Khan, A. Hossain, R. Islam, J. Song
{"title":"Sinr Performance of Multicarrier CDMA System in Frequency-Selective Rayleigh Fading Channels","authors":"R. Khan, A. Hossain, R. Islam, J. Song","doi":"10.1109/ICICT.2007.375375","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375375","url":null,"abstract":"In this paper a new expression of the signal-to-interference-noise ratio (SINR) for single cell multicarrier code division multiple access (MC-CDMA) wireless system in a frequency-selective Rayleigh fading channel is derived and investigated. The expression is much simplified compared to previous research. The SINR performance in uplink channels with frequency-selective Rayleigh fading is shown by computer simulation. It is assumed that the proposed system suffers single path fading. Numerical results indicate that the system performs better than that of the conventional DS-CDMA system. The result of the analysis will provide relevant information to design the physical layer protocol for 4G mobile communications system.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122129491","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
Effect of Variation of Thickness on Integrated Antenna System in Silicon 厚度变化对硅基集成天线系统的影响
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375366
A. Bin Islam, S. Mostafa, W. Tushar, A. Rashid
{"title":"Effect of Variation of Thickness on Integrated Antenna System in Silicon","authors":"A. Bin Islam, S. Mostafa, W. Tushar, A. Rashid","doi":"10.1109/ICICT.2007.375366","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375366","url":null,"abstract":"In this study we have investigated the effects of variation of silicon substrate thickness on the gain of integrated antennas in on-chip wireless interconnect system. The antennas were fabricated on silicon wafer and the excitation was applied horizontally. Simulation of the test structure has been carried out using ANSOFT High Frequency Structure Simulation (HFSS) program employing the three dimensional finite element methods. A simple analytical model is also developed, using ground reflection (two ray) model to predict the gain in various thicknesses of silicon substrate. Results obtained from the analytic model and simulated data are presented here for comparison.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122752517","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: 2
Gpnocsim - A General Purpose Simulator for Network-On-Chip gpnosim -一个用于片上网络的通用模拟器
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375388
Hemayet Hossain, M. Ahmed, A. Al-Nayeem, Tanzima Islam, Md. Mostofa Akbar
{"title":"Gpnocsim - A General Purpose Simulator for Network-On-Chip","authors":"Hemayet Hossain, M. Ahmed, A. Al-Nayeem, Tanzima Islam, Md. Mostofa Akbar","doi":"10.1109/ICICT.2007.375388","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375388","url":null,"abstract":"Network-on-chip (NoC) has gained considerable attention over the last few years as a paradigm for implementing communication among the system components embedded in a single chip. As such, there has been an increased need for defining and developing simulation software for carrying out simulation of NoC architectures. In this paper, we present gpNoCsim, a Java based general-purpose network simulator for NoC, which is built upon the object-oriented modular design of the NoC architecture components. Here we demonstrate the use of our proposed simulator by simulating several existing well-known architectures. We have also provided the guidelines on how to simulate future architectures. Finally, we have validated the outputs of gpNoCsim with the studies of existing NoC architectures.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131672290","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: 55
Voiced/Unvoiced Detection of Speech Signals Using Empirical Mode Decomposition Model 基于经验模态分解模型的语音信号的浊音/浊音检测
2007 International Conference on Information and Communication Technology Pub Date : 2007-03-07 DOI: 10.1109/ICICT.2007.375400
K. I. Molla, K. Hirose, N. Minematsu, K. Hasan
{"title":"Voiced/Unvoiced Detection of Speech Signals Using Empirical Mode Decomposition Model","authors":"K. I. Molla, K. Hirose, N. Minematsu, K. Hasan","doi":"10.1109/ICICT.2007.375400","DOIUrl":"https://doi.org/10.1109/ICICT.2007.375400","url":null,"abstract":"This paper presents a new technique for voiced/unvoiced (V/UV) discrimination based on the extraction of pitch period. Empirical mode decomposition (EMD) is employed for multi-band representation of speech signal in time domain. The fundamental oscillation in a speech segment is determined in the autocorrelation function (ACF) of the EMD space. A damped cosine model is fitted using least squared method to extract the frequency of the fundamental oscillation. The mean fractional energy contributed by the oscillations with pitch period in different ACFs is used as the factor to classify a speech segment as V/UV. The experimental results show that the performance of the proposed method is noticeable as compared to other reported methods.","PeriodicalId":206443,"journal":{"name":"2007 International Conference on Information and Communication Technology","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133801812","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: 15
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