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2009 International Multimedia, Signal Processing and Communication Technologies最新文献

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An optimal transform architecture for H.264/AVC H.264/AVC的最佳变换架构
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164165
A. Prasoon, K. Rajan
{"title":"An optimal transform architecture for H.264/AVC","authors":"A. Prasoon, K. Rajan","doi":"10.1109/MSPCT.2009.5164165","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164165","url":null,"abstract":"This paper presents the design of the area optimized integer Two Dimensional Discrete Cosine Transform (2-D DCT) used in H.264/AVC codecs. The 2-D DCT calculation is performed by utilizing the separability property, in such a way that 2-D DCT is divided into two 1-D DCT calculation that are joined through a common memory. Due to its area optimized approach, the design will find application in mobile devices. Verilog hardware description language (HDL) in cadence environment has been used for design, compilation, simulation and synthesis of transform block in 0.18µ TSMC technology.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124721380","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
Performance of Blackman window family in M-channel Cosine Modulated Filter Bank for ECG signals m通道余弦调制滤波器组中Blackman窗族对心电信号的性能研究
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164183
A. Datar, Alok K. Jain, P.C. Sharma
{"title":"Performance of Blackman window family in M-channel Cosine Modulated Filter Bank for ECG signals","authors":"A. Datar, Alok K. Jain, P.C. Sharma","doi":"10.1109/MSPCT.2009.5164183","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164183","url":null,"abstract":"In this work, 32 channel Cosine Modulated Filter Bank (CMFB) is used to decompose and reconstruct single lead ECG signal. The prototype filter for analysis and synthesis filter banks is designed using window technique. Variants of Blackman window, which is a fixed window, are used to design the prototype filter. The cutoff frequency of prototype filter is optimized to minimize the error function. A linear iterative optimization algorithm is used to achieve minimum reconstruction error. The results show a significant reduction in reconstruction error. In some cases, Blackman window family performed even better than adjustable windows. Further, No perceptible loss in signal morphology and features are visible in reconstructed ECG signal, which is in accordance with clinical requirement. ECG signals from MIT-BIH ECG database is used to test the designed filter bank.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128019526","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: 16
Significance of tree structures for zerotree-based wavelet video codecs 树结构对基于零树的小波视频编解码器的意义
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164218
A. A. Moinuddin, E. Khan, M. Ghanbari
{"title":"Significance of tree structures for zerotree-based wavelet video codecs","authors":"A. A. Moinuddin, E. Khan, M. Ghanbari","doi":"10.1109/MSPCT.2009.5164218","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164218","url":null,"abstract":"In this paper we investigate the significance of tree structures on the performance of zerotree based wavelet video codecs. Since zerotree approach is based on aggregation of insignificant coefficients in trees, therefore design of a tree structure is the key issue for a better performance. We have considered four different tree structures with characteristics varying from a simple to relatively complex and composite tree structures to code the luminance-chrominance components of a video sequence. We observe that in general more complex and longer trees do not necessarily improve the coding efficiency. Further, the simulation results show that by designing an efficient tree structure, depending on the picture content, the performance of the video coder can be improved by up to 2.0 dB.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133644573","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
An ultra broadband stacked circular patch antenna 一种超宽带堆叠圆形贴片天线
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164182
P. Tilanthe, P. Sharma
{"title":"An ultra broadband stacked circular patch antenna","authors":"P. Tilanthe, P. Sharma","doi":"10.1109/MSPCT.2009.5164182","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164182","url":null,"abstract":"A stacked, three layer circular antenna is presented here which has ultra wide band radiation characteristic. In order to achieve wide bandwidth, proximity coupled circular patches with dual probe feed is used. The resonator parameters are optimized in order to achieve ultra wide band characteristics. Few optimization results are also presented. Return loss, radiation pattern and VSWR over frequency range 1GHz – 30GHz is presented for the best antenna.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"117 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116235558","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: 5
Iterative and distributed range-free localization algorithm for wireless sensor networks 无线传感器网络迭代分布式无距离定位算法
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164184
Madhulika, Alok Kumar, S. Varma
{"title":"Iterative and distributed range-free localization algorithm for wireless sensor networks","authors":"Madhulika, Alok Kumar, S. Varma","doi":"10.1109/MSPCT.2009.5164184","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164184","url":null,"abstract":"Advances in micro electro mechanical have triggered an enormous interest in wireless sensor networks. The difficulty of accurate location of sensor nodes has long been considered as very difficult to solve, when taking into account the realities of real world applications. In this paper localized problem is considered with the aim to improve accuracy in location estimation. It describes a distributed algorithm for estimating node positions in a sensor network called Iterative Positioning Algorithm (IPA), that makes use of three stationary beacons to localize a few neighboring nodes and the process continues until the entire network is localized. We design, implement, evaluate and analyze this distributed localization algorithm using simulations. We also demonstrate that the algorithm scales to large networks and handles real world deployment scenarios. These results of the simulation will provide invaluable insights to the performance of the selected range free localization algorithms.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"371 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116539952","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
Modeling and simulation of wideband low jitter frequency synthesizer 宽带低抖动频率合成器的建模与仿真
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164239
A. Telba
{"title":"Modeling and simulation of wideband low jitter frequency synthesizer","authors":"A. Telba","doi":"10.1109/MSPCT.2009.5164239","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164239","url":null,"abstract":"This paper presents modeling and simulation of a wideband low jitter frequency synthesizer. The proposed system uses two phase-locked loops (PLLs) connected in cascade. The first PLL uses a voltage-controlled crystal oscillator (VCXO) to eliminate the input jitter and the second one is a wideband PLL. One important advantage of using the proposed system is that it uses only one VCXO for multiple carrier frequencies, while reducing the jitter considerably. The MATLAB Simulink simulation results show that the jitter could be minimized while working at different carrier frequencies.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123307383","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: 5
Effect of wavelength conversion factor on blocking probability and link utilization in wavelength routed optical network 波长转换因子对波长路由光网络阻塞概率和链路利用率的影响
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164197
Aditya Goel, V. J. Gond
{"title":"Effect of wavelength conversion factor on blocking probability and link utilization in wavelength routed optical network","authors":"Aditya Goel, V. J. Gond","doi":"10.1109/MSPCT.2009.5164197","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164197","url":null,"abstract":"Due to introduction of various wide-band applications in wired and wireless network demand of bandwidth is growing exponential. The existing network is not capable to meet the requirement of vast bandwidth. These requirement can be meet by all optical network which is capable of transmitting enormous data at very high speed, around 50 Tera bits per seconds (Tbps) A wavelength conversion technique is addressed in this paper to reduced the blocking probability in wavelength routed networks. It is seen that the blocking probability of traffic requests decreases as the wavelength conversion factor increases. We explode the possibility for network with different size comprising of 25, 50 and 100 nodes with variation in wavelength per link In this work the effects of varying number of wavelength converters, different traffic types on fiber link utilization and network blocking probability are evaluated and results are shown that the blocking probability is minimum with wavelength conversion factor of 0.5. Thus we propose a network with 32 and 64 wavelengths and 50 % wavelength convertible nodes.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128316586","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
Design and simulation of a modified block transmission system with pre-coding 一种改进的预编码分组传输系统的设计与仿真
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164223
M. Khatib, F. Ghani, M. F. Ain
{"title":"Design and simulation of a modified block transmission system with pre-coding","authors":"M. Khatib, F. Ghani, M. F. Ain","doi":"10.1109/MSPCT.2009.5164223","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164223","url":null,"abstract":"This paper presents a simulation study for a new block transmission system that depends on sharing the equalization process between the receiver and the transmitter. The transmitter share will be 75% of the signal processing, while the rest will be done at the receiver. A real time simulation is performed using Simulink to prove the mathematical model. Detailed block diagrams are introduced with description of the system behavior, with a comparison of the performance with the mathematical model for different signal to noise ratios.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117098708","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
On the realization and design of chaotic spread spectrum modulation technique for secure data transmission 安全数据传输的混沌扩频调制技术的实现与设计
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164220
G. M. Bhat, Javaid Ahmad, Shabir Ahmad
{"title":"On the realization and design of chaotic spread spectrum modulation technique for secure data transmission","authors":"G. M. Bhat, Javaid Ahmad, Shabir Ahmad","doi":"10.1109/MSPCT.2009.5164220","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164220","url":null,"abstract":"In this paper, an exciting recent development in non-linear dynamics and realization of Chaos and its applications in Secure Message Communication is presented. The Chaos oscillator based on non-linear resistor has been taken as Chaos generator at the transmitting and receiving side. The phenomenon of secure communication with chaos spread spectrum has been investigated experimentally. A Chaos signal which has been generated from a chaos generator has been modulated with the message signal to be transmitted, and subsequently demodulated using the same chaotic signal generated at the receiving end, to enable secure message communication. The results of experimental investigation have been presented in the paper.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114919182","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: 14
Indoor environment gas monitoring system based on the digital signal processor 基于数字信号处理器的室内环境气体监测系统
2009 International Multimedia, Signal Processing and Communication Technologies Pub Date : 2009-03-14 DOI: 10.1109/MSPCT.2009.5164221
Anuj Kumar, I. Singh, S. K. Sud
{"title":"Indoor environment gas monitoring system based on the digital signal processor","authors":"Anuj Kumar, I. Singh, S. K. Sud","doi":"10.1109/MSPCT.2009.5164221","DOIUrl":"https://doi.org/10.1109/MSPCT.2009.5164221","url":null,"abstract":"Environment monitoring has become a necessity because of global warming and climate change. All across the globe researchers are trying to monitor the environmental parameters of temperature, humidity and pollutants gases mere precisely in real time. Sensing system using sensor arrays has been developed to monitor indoor environment, however, these systems are costly and have not gained wide acceptance. Precise monitoring of building environment has a huge potential in terms of energy savings. In this paper we are trying to look into the problem of real time processing of carbon monoxide and carbon dioxide gases measurement using a DSP board (TMS320C6455) and then implementing to the proposed gas monitoring system.","PeriodicalId":179541,"journal":{"name":"2009 International Multimedia, Signal Processing and Communication Technologies","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121800225","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
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