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2012 5th International Conference on Computers and Devices for Communication (CODEC)最新文献

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Adjustable gain controlled SOA for optical burst receiver 用于光突发接收机的可调增益控制SOA
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509316
I. Sengupta, A. Das Barman
{"title":"Adjustable gain controlled SOA for optical burst receiver","authors":"I. Sengupta, A. Das Barman","doi":"10.1109/CODEC.2012.6509316","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509316","url":null,"abstract":"Burst mode receiver in a packet transmission through an optical fiber encounters the problem of large amplitude fluctuation among the incoming bursty data packets which causes an optical amplifier to deviate from its linearity. To mitigate this problem, an adjustable gain controlled semiconductor optical amplifier (AGC-SOA) can be employed as a preamplifier to the burst mode receiver. In this paper, a simple model consisting of two SOAs and a laser cavity loop is used to implement an AGC-SOA. It is observed from the simulated results that, the model is capable of providing linearity over almost 30dB range of input packet power, which is wide enough to be used in burst receiver. The results also show the occurrence of a constant value of output saturation power as high as 1dBm. Reservoir model of SOA is employed to simulate the behaviour of AGC-SOA and the results match with the reported data [6] quite accurately.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"69 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":"117271869","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
Review on PPLN waveguide-based photonic processing for phase-coded signals in new generation optical networks 新一代光网络中基于PPLN波导的相位编码信号光子处理研究进展
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509186
A. Malacarne, A. Bogoni, E. Lazzeri, G. Berrettini
{"title":"Review on PPLN waveguide-based photonic processing for phase-coded signals in new generation optical networks","authors":"A. Malacarne, A. Bogoni, E. Lazzeri, G. Berrettini","doi":"10.1109/CODEC.2012.6509186","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509186","url":null,"abstract":"Periodically poled lithium niobate waveguides enable a wide range of optical operations on phase-coded signals. They guarantee high bit rate operation, high compactness and low penalty, allowing an efficient signal processing in new generation optical networks both exploiting differential or coherent receiver. They allow to avoid a large number of optical-electro-optical conversions thus reducing the network total power budget. Format conversion and simultaneous wavelength conversion of on-off keying and phase-shift keying (PSK) signals, logic operations, data swapping and multicasting of PSK signals can be achieved. These operations in the optical domain represent the key elements for the development of a future optical network more efficient and with higher capacity.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"39 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":"120962880","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
ECG signal classification using wavelet transform and Back Propagation Neural Network 基于小波变换和反向传播神经网络的心电信号分类
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509183
H. Rai, A. Trivedi
{"title":"ECG signal classification using wavelet transform and Back Propagation Neural Network","authors":"H. Rai, A. Trivedi","doi":"10.1109/CODEC.2012.6509183","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509183","url":null,"abstract":"This paper addressed the use of Back Propagation Neural Network for Classification of ECG waveforms using discrete wavelet transform. We have been selected of MIT-BIH arrhythmia database and picked up 45 files out of 48 files of one minute recording where 25 files are considered as normal class and 20 files of abnormal based on Maximum number of beats present in each record. Proposed method used to classify ECG signal data for abnormal class using BPNN. The features are break up in to two classes that is DWT based features and morphological feature of ECG signal which is an input to the classifier. Back Propagation Neural Network (BPNN) was used to classify the ECG data and the system performance is measured on the basis of percentage accuracy. For the Abnormal sample 100% of accuracy is reached whereas 96% of accuracy was achieved for normal ECG sample. The overall system accuracy 97.8 % was obtained with the use of BPNN classifier.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"44 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":"126395145","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: 21
GaN/AlGaN based complementary p+-p−-p-n+ ATT-device for application in THz Imaging 基于GaN/AlGaN的互补p+-p−-p-n+ at器件在太赫兹成像中的应用
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509252
M. Mukherjee, P. R. Tripathy, S. P. Pati
{"title":"GaN/AlGaN based complementary p+-p−-p-n+ ATT-device for application in THz Imaging","authors":"M. Mukherjee, P. R. Tripathy, S. P. Pati","doi":"10.1109/CODEC.2012.6509252","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509252","url":null,"abstract":"A detailed simulation investigation is carried out on the hetero-structure complimentary (p<sup>+</sup>-p<sup>-</sup>-p-n<sup>+</sup>) IMPATT oscillator for Terahertz power generation. It is observed that this newly proposed GaN/AlGaN IMPATT may generate a pulsed power density of ~8×10<sup>10</sup> Wm<sup>-2</sup> with an efficiency of 11%, whereas it's flatly doped counterpart is capable of delivering a pulsed power density of only 3×10<sup>10</sup> Wm<sup>-2</sup> with 7% efficiency. The total parasitic series resistance, R<sub>S</sub>, including that due to the un-depleted region in device and also the effects of ohmic contact resistances, has been found to be a major problem that reduces the negative resistance significantly and thus it has a detrimental effect on THz oscillation of the device. The study reveals that the value of R<sub>S</sub> decreases by 40% as the structure, semiconductor material pair as well as doping profile of the diode changes suitably from conventional to the proposed hetero-structure p<sup>+</sup>-p<sup>-</sup>-p-n<sup>+</sup> type, by incorporating a 300A<sup>0</sup> Al<sub>0.4</sub>Ga<sub>0.6</sub>N layer in the p-drift region. This first study will be a useful guide in the THz-sector to meet the ever-increasing demand of semiconductor THz-sources for application in Imaging or in improvised explosive device (IED) detection.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"61 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":"124704154","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
Simulation of the encryption of NetFlow packet capturing system using IPSec 基于IPSec的NetFlow抓包系统加密仿真
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509361
A. J. Ghazali, W. Al-Nuaimy, A. Nandi
{"title":"Simulation of the encryption of NetFlow packet capturing system using IPSec","authors":"A. J. Ghazali, W. Al-Nuaimy, A. Nandi","doi":"10.1109/CODEC.2012.6509361","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509361","url":null,"abstract":"This paper investigates the effectiveness of IPSec as encryption tools in securing NetFlow packets through an encapsulated channel in a simulated network traffic model. NetFlow's flow recording is one of the most serious threats that has broad significance in NetFlow's flow recording technology. By securing the NetFlow, the administrator could enforce a privacy policy on the data that is recorded. We employ IPSec as encryption tool that encapsulates the flow and turns it into a secured channel. Furthermore, we demonstrate that the CPU and memory utilization during the process will not have a big impact on machine's performance. Simulation results show that NetFlow's flow data are successfully recorded and encrypted by IPSec. It is found that this process has not consumed more memory which only differs by 0.2% from normal operation and that the CPU performance is only increased by 6.5%.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"22 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":"125963053","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
Modeling minority charge partitioning factor in SiGe HBTs using full regional approach 用全区域方法模拟SiGe HBTs的少数电荷分配因子
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509257
N. Augustine, A. Chakravorty
{"title":"Modeling minority charge partitioning factor in SiGe HBTs using full regional approach","authors":"N. Augustine, A. Chakravorty","doi":"10.1109/CODEC.2012.6509257","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509257","url":null,"abstract":"This paper shows that the minority charge partitioning effect in silicon germanium heterojunction bipolar transistors exists even in the low-frequency quasi-static regime. The charge partitioning factor is extracted using the new equivalent circuit model from numerically simulated data for a one-dimensional transistor structure. A comprehensive bias-dependent model is developed using full regional approach coupled with the transient integral charge control theory. The model predicts the bias-dependent low-frequency y21-parameters with excellent accuracy.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"35 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":"129233651","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 novel proposal of chipless RFID using layered metal patches 一种使用层状金属贴片的无晶片RFID新方案
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509259
G. Chakravarty
{"title":"A novel proposal of chipless RFID using layered metal patches","authors":"G. Chakravarty","doi":"10.1109/CODEC.2012.6509259","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509259","url":null,"abstract":"The application of RFID tags are spreading, finding use in our everyday life. Many potential uses are not practical with the present day RFID technology due to high cost and limited range of operation. The present work focuses on developing a sub-cent RFID capable of operating from a reasonable distance, though with some compromise on the number of bits of information that can be stored in the tag. Since there are ample applications of read-only RFID with limited information content, the present technology is expected to fill a substantial part of the niche of applications with sub-cent tags.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"1 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":"129766333","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
Suppression of stimulated Brillouin scattering using optimization techniques 利用优化技术抑制受激布里渊散射
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509318
H. Pradhan, P. Sahu
{"title":"Suppression of stimulated Brillouin scattering using optimization techniques","authors":"H. Pradhan, P. Sahu","doi":"10.1109/CODEC.2012.6509318","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509318","url":null,"abstract":"The Stimulated Brillouin Scattering (SBS) suppression using optimisation techniques and its effect on performance improvement on long range fiber based Distributed system is analyzed in this paper. This paper presents the suppression of stimulated Brillouin scattering by increasing the SBS threshold power using phase modulation and fiber optimization technique.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"1 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":"129943513","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
Extended date rate prediction for cognitive radio using ANFIS with Subtractive Clustering 基于减法聚类的ANFIS认知无线电扩展数据率预测
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509239
S. Hiremath, S. K. Patra, A. Mishra
{"title":"Extended date rate prediction for cognitive radio using ANFIS with Subtractive Clustering","authors":"S. Hiremath, S. K. Patra, A. Mishra","doi":"10.1109/CODEC.2012.6509239","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509239","url":null,"abstract":"Cognitive radio has emerged as intelligent wireless technology for solving the ever-growing demand of radio spectrum. Cognitive radio is a context aware radio, capable of observing the channel and networks parameters and make autonomously decisions on the best transceiver configuration. Cognitive radio can be made adaptive by utilizing intelligent software techniques. In this paper, we propose Subtractive Clustering with ANFIS based adaptive technique so that it works intelligently to select particular radio configuration. The system considers different time zones and subtractive clustering is used to assist ANFIS in selecting optimum number of rules and membership function. The performance of this is seen to be better than the neural network and ANFIS scheme.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"55 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":"128547763","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
Placing the ‘third’ node: An energy efficiency perspective 放置“第三”节点:能源效率的视角
2012 5th International Conference on Computers and Devices for Communication (CODEC) Pub Date : 2012-12-01 DOI: 10.1109/CODEC.2012.6509228
B. Ghosh, Anirban Ghosh, Nilanjan Biswas, A. Chandra
{"title":"Placing the ‘third’ node: An energy efficiency perspective","authors":"B. Ghosh, Anirban Ghosh, Nilanjan Biswas, A. Chandra","doi":"10.1109/CODEC.2012.6509228","DOIUrl":"https://doi.org/10.1109/CODEC.2012.6509228","url":null,"abstract":"Reduction of energy consumption has become one of the prime concerns in recently deployed wireless communication systems, both from ecological and from economical perspectives. This paper examines whether introduction of a third node, i.e. a wireless relay (R) placed between source node (S) and destination node (D), can improve the energy efficiency of the system. For collinear arrangement, a comparison of energy consumed per successful bit transmission reveals that energy saving is possible only when R is placed at a certain distance from S (or D) and there exists an optimum location where energy saving is maximum. For non-linear scenarios, however, the amount of energy saving depends on the two-dimensional co-ordinates of R. In this case, we have identified regions on the S-R-D plane that satisfies a given minimum energy saving constraint.","PeriodicalId":399616,"journal":{"name":"2012 5th International Conference on Computers and Devices for Communication (CODEC)","volume":"509 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":"134143922","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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