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Comparison of wavelet filters in image coding using hybrid compression technique 小波滤波器在混合压缩图像编码中的比较
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496570
P. V. M. Vijayabhaskar, N. R. Raajan
{"title":"Comparison of wavelet filters in image coding using hybrid compression technique","authors":"P. V. M. Vijayabhaskar, N. R. Raajan","doi":"10.1109/ICEVENT.2013.6496570","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496570","url":null,"abstract":"In this, we performed compression of an image by using Hybrid (DWT & DCT) technique. Standard wavelet filters of Haar, Daubechies, Symlets, Coiflets, BiorSplines & ReverseBior were used to estimate compression performance. Generally any Compression method is trying to reduce number of bits per pixel for sufficient representation of image. So memory needed for storing necessary information is reduced & communication efficiency is upgraded. In modern days, the method of image decomposition with the help of wavelets has attained an immense agreement of reputation. Totally standard wavelet filters are compared with 3 different gray images in the encoding section & tabulated the MSE Vs PSNR simulation results. These results offered that, Daubechies (db9) wavelet family produced better results with this Hybrid image compression scheme.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"10 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78928638","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
Modeling the inversion charge centroid in Tri-Gate MOSFETs including quantum effects 包含量子效应的三栅极mosfet中反转电荷质心的建模
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496577
P. Vimala, N. Balamurugan
{"title":"Modeling the inversion charge centroid in Tri-Gate MOSFETs including quantum effects","authors":"P. Vimala, N. Balamurugan","doi":"10.1109/ICEVENT.2013.6496577","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496577","url":null,"abstract":"In this paper, inversion charge centroid analytical model for Tri-Gate (TG) metal-oxide- semiconductor field effect transistors (MOSFETs) considering quantum effects is presented. To obtain the QM effects of TG MOSFETs, the coupled Poisson and Schrodinger equations are solved using variational approach. This model is developed to provide an analytical expression for inversion charge distribution function (ICDF). The obtained ICDF is used to calculate the inversion charge centroid.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"80 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72914783","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
Challenges and authentication in Wireless Sensor Networks 无线传感器网络中的挑战与认证
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496550
A. Jayanthiladevi, S. Suma, T. Lalitha
{"title":"Challenges and authentication in Wireless Sensor Networks","authors":"A. Jayanthiladevi, S. Suma, T. Lalitha","doi":"10.1109/ICEVENT.2013.6496550","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496550","url":null,"abstract":"A network comprising of several minute wireless sensor nodes which are organized in a dense manner is called as a Wireless Sensor Network (WSN). Fig 1 demonstrates the architecture of wireless sensor networks. Every node estimates the state of its surroundings in this network. The estimated results are then converted into the signal form in order to determine the features related to this technique after the processing of the signals. Based on the multi hop technique, the entire data that is accumulated is directed towards the special nodes which are considered as the sink nodes or the Base Station (BS). The user at the destination receives the data through the internet or the satellite via gateway. The use of the gateway is not very necessary as it is reliant on the distance between the user at the destination and the network [1].","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"5 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88966719","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
A low power single phase clock distribution using VLSI technology 采用VLSI技术的低功耗单相时钟分布
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496592
A. Indhumathi, A. Sathishkumar
{"title":"A low power single phase clock distribution using VLSI technology","authors":"A. Indhumathi, A. Sathishkumar","doi":"10.1109/ICEVENT.2013.6496592","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496592","url":null,"abstract":"The clock distribution network consumes nearly 70% of the total power consumed by the IC since this is the only signal which has the highest switching activity. Normally for a multi clock domain network we develop a multiple PLL to cater the need, this project aim for developing a low power single clock multiband network which will supply for the multi clock domain network. This project is highly useful and recommended for communication applications like Bluetooth, Zigbee. WLAN frequency synthesizers are proposed based on pulse-swallow topology and the designed is modeled using Verilog simulated using Modelsim and implemented in Xilinx.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"160 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89049308","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
Growth and characterization of pure and L-Glutamic acid doped zinc tris(thiourea) sulphate (ZTS) single crystals 纯和l -谷氨酸掺杂的三硫脲硫酸锌(ZTS)单晶的生长和表征
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496595
B. S. Samuel, R. Rajasekaran
{"title":"Growth and characterization of pure and L-Glutamic acid doped zinc tris(thiourea) sulphate (ZTS) single crystals","authors":"B. S. Samuel, R. Rajasekaran","doi":"10.1109/ICEVENT.2013.6496595","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496595","url":null,"abstract":"Single crystals of pure and L-glutamic acid doped zinc tris (thiourea) sulphate(ZTS) were grown from aqueous solution by slow evaporation technique. The grown crystals were subjected to various studies such as FTIR, Powder X-Ray diffraction, second harmonic generation (SHG), UV-visible spectra and thermal analysis (TG-DTA). The FTIR study confirms the incorporation of L- glutamic acid into ZTS crystal. The enhancement of SHG efficiency was observed in doped ZTS crystal. The doped crystals are optically transparent and thermally stable.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91555021","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
Investigations into the relationship between GPSDOP and unit-vector tetrahedron volume 单位矢量四面体体积与GPSDOP关系的研究
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496546
Q. Sultana, M. A. Hussain, M. A. Malik
{"title":"Investigations into the relationship between GPSDOP and unit-vector tetrahedron volume","authors":"Q. Sultana, M. A. Hussain, M. A. Malik","doi":"10.1109/ICEVENT.2013.6496546","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496546","url":null,"abstract":"Dilution of Precision (DOP) is an important factor which decides the accuracy of a satellite-based navigation system. There is a globally prevailing statement that DOP depends on the tetrahedron formed due to navigation satellites. However, the definition of tetrahedron volume and its relation to DOP is found ambiguous in the open literature. A review of the existing definitions is made and an attempt is done to identify the proper relation. Data collected from DL-4 plus GPS receiver kept at Osmania University, Hyderabad city is utilised for this purpose. It is found that the unit-vector tetrahedron volume formed due to four satellites is found inversely proportional to the DOP, most of the time. But the relation is not true for all combinations of satellites.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83085070","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
Comparative analysis of mobile radio path loss models for suburban environment in Southern India 印度南部郊区环境下移动无线电路径损耗模型的比较分析
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496544
A. Bhuvaneshwari, T. Sathyasavithri
{"title":"Comparative analysis of mobile radio path loss models for suburban environment in Southern India","authors":"A. Bhuvaneshwari, T. Sathyasavithri","doi":"10.1109/ICEVENT.2013.6496544","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496544","url":null,"abstract":"Path loss models are widely used in the planning and implementation of a mobile radio system, and to evaluate the quality of service. Path loss indicates the attenuation of the radio signal as it propagates through various terrain conditions. Empirical path loss models for mobile systems are largely used in research due to their high speed, and improved accuracy. This paper estimates the path loss of mobile signals, recorded during a set of experiments performed in the areas around Osmania University at Hyderabad city in southern India. The data is collected in the frequency range of 940-950 MHz, within the coverage area of the base stations, by using suitable outdoor equipment. The field strengths obtained, are used to calculate the path loss. Least square regression analysis is performed on the measured values, and the results are compared with path loss computed from standard empirical models such as Cost-231 Hata model and Stanford University Interim (SUI) channel model. The performance of the path loss models are evaluated in terms of mean prediction error, and average relative error. Compared to Least Square analysis, the average relative error is 5.56% for SUI model, and 39.72% for Cost 231-Hata model. The lesser values of mean prediction error and relative error of the SUI model, suggests that it is more suitable for the specified environment.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"73 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91169528","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
Zone based multicast routing protocol for mobile ad-hoc network 基于区域的移动ad-hoc网络组播路由协议
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496539
K. Kavitha, K. Selvakumar, T. Nithya, S. Sathyabama
{"title":"Zone based multicast routing protocol for mobile ad-hoc network","authors":"K. Kavitha, K. Selvakumar, T. Nithya, S. Sathyabama","doi":"10.1109/ICEVENT.2013.6496539","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496539","url":null,"abstract":"A Mobile Ad-hoc network (MANET) is composed of mobile nodes without using infrastructure. There are several virtual architectures used in the protocol without need of maintaining state information for more robust and scalable membership management. In this paper, we propose a Robust and Scalable Geographic Multicast protocol (RSGM). Both the control messages and data packets are forwarded along efficient tree-like paths, but there is no need to explicitly create and actively maintain a tree structure. To avoid periodic flooding of the source information throughout the network, a well-organized source tracking mechanism is designed. We are analyzing the protocols RSGM, SPBM and ODMRP with the performance metrics such as packet delivery ratio, control overhead, average path length and average joining delay by varying moving speed, node density, group size and network ranges.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"81 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90413171","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
Effect of chromatic dispersion on four-wave mixing in WDM systems and its suppression 色散对波分复用系统中四波混频的影响及其抑制
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496567
S. Sugumaran, P. Arulmozhivarman
{"title":"Effect of chromatic dispersion on four-wave mixing in WDM systems and its suppression","authors":"S. Sugumaran, P. Arulmozhivarman","doi":"10.1109/ICEVENT.2013.6496567","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496567","url":null,"abstract":"The dominating effect of Wavelength Division multiplexed system is Four Wave Mixing (FWM).Channel crosstalk and performance degradation of the system can be induced in the multi channel systems by FWM. In this paper, we have simulated the effect of chromatic dispersion on FWM using equal channel spacing in terms input/output spectrum, eye diagram and bit error rate. Results show that the effect of FWM reduces with the increasing dispersion coefficient. And the suppression of FWM is achieved by placing the Optical Phase Conjugator (OPC) in the midway of the fiber optic link. It strongly suppresses the FWM signal by introducing the destructive interference between the first and second halves of the fiber optic link. Reconstruction of original signal can be achieved by placing another OPC at the end of the second fiber span. DWDM system with OPC can effectively suppress the Four Wave Mixing signal power.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"6 21 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78509608","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: 13
Separable extraction of concealed data and compressed image 隐藏数据和压缩图像的分离提取
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT) Pub Date : 2013-04-11 DOI: 10.1109/ICEVENT.2013.6496573
C. Rengarajaswamy, K. Vel Murugan
{"title":"Separable extraction of concealed data and compressed image","authors":"C. Rengarajaswamy, K. Vel Murugan","doi":"10.1109/ICEVENT.2013.6496573","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496573","url":null,"abstract":"A novel technique for Separable Reversible Data Hiding on Encrypted and transform - based compressed image is proposed. Reversible Data Hiding is the method of hiding data inside a cover file, so that both the data and the cover file could be recovered lossless at the receiver. The transmitter side of such systems involves a cover image, additional data, encryption key and a data hiding key The original image is first encrypted, compressed and then embedded with the secret data. The receiver thus needs to decrypt and extract the hidden information. Important aspects of data hiding include minimizing distortion and improving embedding capacity. Capacity improvement is achieved via compression. Thus compressed image would accumulate more secret data. Amount of secrecy could be further enhanced by compression techniques. Compression could be either lossy or lossless. Also, this method of RDH could be implemented either using a non-separable receiver or a separable receiver. This paper focuses on separable reversible data hiding on encrypted and compressed images.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"219 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73624186","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
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