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2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)最新文献

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Change detection in remotely sensed images using an ensemble of multilayer perceptrons 基于多层感知器的遥感图像变化检测
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422192
M. Roy, D. Routaray, S. Ghosh
{"title":"Change detection in remotely sensed images using an ensemble of multilayer perceptrons","authors":"M. Roy, D. Routaray, S. Ghosh","doi":"10.1109/CODIS.2012.6422192","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422192","url":null,"abstract":"In the proposed work, a change detection technique is developed using a combination of multilayer perceptrons (MLPs). At the onset, the different MLPs are trained with the labeled patterns. Then, the support values (or, the output values) for the unlabeled patterns are obtained from these trained MLPs. At last, decision regarding the class assignment for the unlabeled patterns has been made by fusing the outcome (i.e., support values) obtained from different trained MLPs. In the present experiment, `mean rule' and `majority voting' are used as combination rules. Experiments are carried out on multi-temporal and multi-spectral remotely sensed images. Results for the proposed methodology are found to be encouraging.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117046589","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
Photonic crystal based flat-top filter for CWDM channel compatible with ITU-T recommendation G.694.2 基于光子晶体的CWDM通道平顶滤波器，符合ITU-T G.694.2推荐标准
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422167
S. Dasgupta, S. Mandal, C. Bose
{"title":"Photonic crystal based flat-top filter for CWDM channel compatible with ITU-T recommendation G.694.2","authors":"S. Dasgupta, S. Mandal, C. Bose","doi":"10.1109/CODIS.2012.6422167","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422167","url":null,"abstract":"In this paper a photonic crystal based band pass filter has been designed to meet ITU-T recommendation G.694.2 for CWDM system, by varying the constitutive materials of the unit cell. The amalgamation of Si<sub>1-x</sub>Ge<sub>x</sub> alloy, with Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) has been effectively found compatible as primitive layers of unit cells instead of Si/SiO<sub>2</sub> pair. Finally CST MW simulated results have been presented, for comparative purpose, to demonstrate the amenities of Si<sub>1-x</sub>Ge<sub>x</sub>/Si<sub>3</sub>N<sub>4</sub> pair, over Si/SiO<sub>2</sub> pair, as basis of the photonic crystal.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117333613","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
DOA based adaptive beamforming with RAKE for TDSCDMA cellular networks TDSCDMA蜂窝网络中基于DOA的RAKE自适应波束形成
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422122
A. Kundu, S. Roy, A. Roy, S. K. Parui
{"title":"DOA based adaptive beamforming with RAKE for TDSCDMA cellular networks","authors":"A. Kundu, S. Roy, A. Roy, S. K. Parui","doi":"10.1109/CODIS.2012.6422122","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422122","url":null,"abstract":"Smart Antenna Array acquires the spatial signatures of the signals to estimate the direction of arrival (DOA) and subsequently steer multiple beam towards the desired signals and eliminate co-channel interference and increase the system capacity and improve the communication quality. Smart array with Rake receiver may counter signal multipath effect and improve information reliability. The purpose of this paper is to study the performance of the smart antenna DOA based beamforming algorithm applied to Time Division Synchronous Code Division Multiple Access (TDS -CDMA) system. The simulation results shows that a TDS-CDMA system with smart antenna and rake receiver, compared with an omnidirectional antenna, can have lower bit error rate at a specific signal to noise ratio (SNR), allow more users to access the system at the specific bit error rate thus increase the system capacity. However, performance of smart antenna system greatly depends on efficiency of digital signal processing algorithm applied at the adaptive processor.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122627620","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
Generalized diagonal 2D FLDA for efficient face recognition 基于广义对角二维FLDA的高效人脸识别
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422283
J. Sing, D. Roy, D. K. Basu, M. Nasipuri
{"title":"Generalized diagonal 2D FLDA for efficient face recognition","authors":"J. Sing, D. Roy, D. K. Basu, M. Nasipuri","doi":"10.1109/CODIS.2012.6422283","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422283","url":null,"abstract":"This paper presents a novel generalized diagonal two-dimensional Fisher's linear discriminant (G-Dia2DFLD) analysis for face representation and recognition. The G-Dia2DFLD method is an extension of the existing DiaFLD method in two aspects. Firstly, the former seeks the maximum class separability by interlacing both the forward and backward diagonals of images simultaneously while the latter seeks optimal projection vectors either from forward or backward diagonal of images. Secondly, the DiaFLD method does not preserve continuity of image regions while generating the diagonal images; resulting partially diagonal images; whereas in G-Dia2DFLD method, this continuity is preserved by generating the diagonal images of the original images. The simulation results on the AT&T and AR databases demonstrate the superiority of the proposed G-Dia2DFLD method over the DiaFLD method and also some existing subspace methods.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124957290","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
A comparative study of beamforming techniques using LMS and SMI algorithms in smart antennas 智能天线中使用LMS和SMI算法的波束形成技术的比较研究
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422184
S. Imtiaj, I. S. Misra, R. Biswas
{"title":"A comparative study of beamforming techniques using LMS and SMI algorithms in smart antennas","authors":"S. Imtiaj, I. S. Misra, R. Biswas","doi":"10.1109/CODIS.2012.6422184","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422184","url":null,"abstract":"This paper, we presents a comparative study between the Least Mean Square (LMS) and Sample Matrix Inversion (SMI) algorithms and their application to the smart antenna optimization. The performance of the LMS and SMI algorithms is studied by varying its different parameters in beamforming and null steering problems. Null steering along with multiple interference signals is also done. The two algorithms are compared for null depth, multiple interference, maximum sidelobe level and rate of convergence.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127925664","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
Improving prediction of protein function from protein interaction network using intelligent neighborhood approach 利用智能邻域方法改进蛋白质相互作用网络对蛋白质功能的预测
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422270
Sovan Saha, Piyali Chatterjee, Subhadip Basu, M. Kundu, M. Nasipuri
{"title":"Improving prediction of protein function from protein interaction network using intelligent neighborhood approach","authors":"Sovan Saha, Piyali Chatterjee, Subhadip Basu, M. Kundu, M. Nasipuri","doi":"10.1109/CODIS.2012.6422270","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422270","url":null,"abstract":"Proteins are responsible for all biological activities in a living object. With the advent of genome sequencing projects for different organisms, large amounts of DNA and protein sequence data is available, whereas their biological function is still un-annotated in the most of the cases. Predicting protein function is the most challenging problem in post-genomic era. Using sequence homology, phylogenetic profiles, gene expression data, and function of un-annotated protein can be predicted. Recently, the large interaction networks constructed from high throughput techniques like Yeast2Hybrid experiments are also used in prediction of protein function. Based on the concept that a protein performs similar function like its neighbor in protein Interaction network, two methods are proposed to predict protein function from protein interaction network using neighborhood properties. The first method uses neighborhood approach and second one is an intelligent technique which applies heuristic knowledge to find densely connected regions for better prediction accuracy. The overall match rate achieved in method-I is 95.8% and in method-II, it is 97.8% over 15 functional groups.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115791320","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
Random S-Box generation in AES by changing irreducible polynomial 改变不可约多项式生成AES随机s盒
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422263
I. Das, S. Nath, S. Roy, S. Mondal
{"title":"Random S-Box generation in AES by changing irreducible polynomial","authors":"I. Das, S. Nath, S. Roy, S. Mondal","doi":"10.1109/CODIS.2012.6422263","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422263","url":null,"abstract":"The S-Box and Inverse S-Box in the tradition advance encryption standard is fixed and it is made by the composite field arithmatic to find the multiplicative inverse in the finite field GF (28). But in traditional AES the use of irreducible polynomial m(x) = x8+ x4 + x3 + x+1 to find out multiplicative inverse, is known to the attacker. So if we can make use of different irreducible polynomial every time to the finite field of GF (28) and send this the receiver combined with the secret key, then every time a new irreducible polynomial is used and a random S-Box is generated. Hence, the security of the algorithm is enhanced. In this paper, we devise an algorithm, which make use of different irreducible polynomial to finite field of GF (28) to make random S-Box and Inverse S-Box.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127122351","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
Variation mitigation technique in SRAM cell using adaptive body bias 基于自适应体偏置的SRAM细胞变异缓解技术
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/codis.2012.6422150
S. Kushwaha, S. Prasad, A. Islam
{"title":"Variation mitigation technique in SRAM cell using adaptive body bias","authors":"S. Kushwaha, S. Prasad, A. Islam","doi":"10.1109/codis.2012.6422150","DOIUrl":"https://doi.org/10.1109/codis.2012.6422150","url":null,"abstract":"This paper presents a circuit technique for designing a variability aware SRAM cell operable at near threshold region. The architecture of the proposed cell is similar to the standard 6T SRAM cell with the exception that DTMOS is used for the access FETs and DSBB (dynamically swapped body bias) scheme is used for feedback and feed-forward inverters of the cell. In this work, various design metrics of the proposed design are assessed and compared with conventional 6T at iso-device area.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128405487","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
Quantum centroid modeling for surrounding gate MOSFETs 围绕栅mosfet的量子质心建模
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422163
P. Vimala, N. Balamurugan
{"title":"Quantum centroid modeling for surrounding gate MOSFETs","authors":"P. Vimala, N. Balamurugan","doi":"10.1109/CODIS.2012.6422163","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422163","url":null,"abstract":"The present analysis proposes an analytical model of gate-all-around/surrounding gate (GAA/SG) MOSFETs for centroid including quantum mechanical (QM) effects. To obtain the QM effects of SGT, 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. The accuracy of the model is verified by comparing the data obtained by Simulations.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"151 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134161035","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
A simplified analytical and simulation framework for evaluating BER of RS coded digital signal in Rician fading channels 一种简化的r编码数字信号在r衰落信道中的误码率评估分析与仿真框架
2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422224
A. Chattopadhyay, A. Chandra, A. Bhattacharjee
{"title":"A simplified analytical and simulation framework for evaluating BER of RS coded digital signal in Rician fading channels","authors":"A. Chattopadhyay, A. Chandra, A. Bhattacharjee","doi":"10.1109/CODIS.2012.6422224","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422224","url":null,"abstract":"In order to mitigate the deleterious effects of multipath fading in satellite wireless channels, forward error correction (FEC) techniques had been used for past several decades. Reed-Solomon (RS) coding is one of the preferred FECs for current satellite systems that experience deep fading. For satellite channels, often a direct path also exists along with the multipath components, and the attenuation due to fading can be characterized with Rician statistics. In this paper, we present simplified bit error rate (BER) expression of binary phase shift keying (BPSK) modulation using RS code in slow flat Rician fading. The analytical BER values have been validated through MATLAB based simulations. A detailed discussion on the development of the simulation code is also included.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"237 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134323252","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
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