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2017 International Conference on Computer, Communications and Electronics (Comptelix)最新文献

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Efficiency improvement of solar array by mitigating soil loss using Arduino 利用Arduino减少土壤流失提高太阳能电池阵效率
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004015
Rajnesh Kumar Yadav, A. G, S. Agrawal
Installation of photovoltaic cell has been increasing day by day in industries and houses due to the increase in cost of power. But the major concern for the increase in future usage of the photovoltaic cell depends on the improvement in efficiency. Accumulation of soil and debris in the photo voltaic cell from the environment reduces the efficiency at the considerable level. In this paper, increase in efficiency can be achieved by removing the soil and dust accumulated in the surface of the photovoltaic cell using wiper which has been operated with servomotor, governed by Arduino microcontroller.
由于电力成本的增加,光伏电池的安装在工业和家庭中日益增加。但是,未来光伏电池使用量的增加主要取决于效率的提高。来自环境的土壤和碎片在光伏电池中的积累在相当程度上降低了效率。在本文中,通过使用由Arduino单片机控制的伺服电机驱动的刮水器来清除光伏电池表面积聚的土壤和灰尘,从而提高效率。
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引用次数: 2
Group Velocity Dispersion tolerant WDM TDM Passive Optical Networks 群速度容忍色散WDM TDM无源光网络
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004025
M. K. Gupta, G. Singh
In the present work, we have analyzed the effects of dicode coding in a passive optical network based on both wavelength and time division multiplexing (WDM-TDM-PON). By numerical analysis, we observed that network using dicode coding is more tolerant to Group Velocity Dispersion (GVD) as compared to traditional Non-return to zero - on-offkeying(NRZOOK) coding. Dispersion degrades the sensitivity of NRZ receiver by 5.5 dB hence limiting the number of users and channel length. With the observations from analysis and results, we suggest the use of Dicode coding to double the number of usersand increase the length of the network by 20percentin respect to NRZ.
在本工作中,我们分析了基于波长和时分复用(WDM-TDM-PON)的无源光网络中二进制编码的影响。通过数值分析,我们发现与传统的不归零开关(NRZOOK)编码相比,使用双码编码的网络更能容忍群速度色散(GVD)。色散会使NRZ接收机的灵敏度降低5.5 dB,从而限制了用户数量和信道长度。根据分析和结果的观察,我们建议使用Dicode编码将用户数量增加一倍,并将网络长度增加20%(相对于NRZ)。
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引用次数: 0
Image watermarking using IWT-SVD and its comparative analysis with DWT-SVD 基于IWT-SVD的图像水印及其与DWT-SVD的对比分析
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004026
Prerna Gupta, G. Parmar
In this era of internet, protection of digital images has become an important concern. Digital image watermarking is a scheme that has been developed to protect confidential digital images from illegal copy and manipulations. There are various methods of watermarking but to achieve good imperceptibility and robustness, a combined image watermarking algorithm based on Integer Wavelet Transform (IWT) and Singular Value Decomposition (SVD) has been developed here. Another aim of this paper is to compare the performance of IWT-SVD algorithm at different scaling factors with DWT-SVD technique. The experimental results have been shared for both the techniques and different evaluation parameters such as; Peak Signal to Noise Ratio (PSNR) and Normalized Cross Correlation (NCC) have been calculated & compared in tabular forms.
在这个互联网时代,数字图像的保护已经成为一个重要的问题。数字图像水印是一种保护机密数字图像免受非法复制和篡改的方案。水印方法多种多样,但为了达到良好的不可感知性和鲁棒性,本文提出了一种基于整数小波变换和奇异值分解的图像水印组合算法。本文的另一个目的是比较IWT-SVD算法与DWT-SVD技术在不同比例因子下的性能。对不同的评价参数,如;峰值信噪比(PSNR)和归一化相互关系(NCC)以表格形式计算和比较。
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引用次数: 15
Comparison of DE optimized PID controllers for AGC of interconnected power system 互联电力系统AGC的DE优化PID控制器比较
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003960
Akash Mewara, G. Parmar
The Differential Evolution (DE) algorithm has been employed for tuning the parameters of the PID controllers existing into the load frequency control (LFC) system of standard interconnected thermal power system by considering the minimization of three objective functions based on the ITAE, damping ratio of dominant eigen values and settling times of frequency and tie line power deviations. The disturbance of 0.1 p.u. step load change is considered in to the area-1 at time t=0 second by keeping no change in area-2 and the system performance has been evaluated in terms of damping ratio, ITAE value, the dynamic responses and time domain specifications. The system performance with PID controllers tuned using DE, are also compared with the performance of the same system optimized by the different techniques in literature such as: BFOA tuned PI controllers, GA tuned PI controllers and DE tuned PI controllers. In the present work, the results show that the better dynamic responses have been obtained by the proposed DE tuned PID controllers with less settling times, smaller overshoots, good damping behavior for the oscillations and less ITAE value as compared to some other techniques mentioned above.
基于ITAE、优势特征值阻尼比、频率和线路功率偏差沉降时间三个目标函数的最小化,采用差分进化(DE)算法将已有PID控制器的参数整定到标准互联火电系统负载频率控制(LFC)系统中。考虑0.1 p.u.阶跃负载变化在t=0秒时对区域-1的干扰,保持区域-2不变,并从阻尼比、ITAE值、动态响应和时域指标等方面评价了系统的性能。本文还比较了采用DE调谐PID控制器的系统性能与文献中采用BFOA调谐PI控制器、GA调谐PI控制器和DE调谐PI控制器等不同方法优化的系统性能。在目前的工作中,结果表明,与上述一些其他技术相比,所提出的DE调谐PID控制器具有较好的动态响应,沉降时间短,超调量小,振荡阻尼性能好,ITAE值小。
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引用次数: 2
Emotion analysis: A survey 情绪分析:一项调查
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004002
Nida Hakak, Mohsin Mohd, Mahira Kirmani, Mudasir Mohd
Emotions form a very important and basic aspect of our lives. Whatever we do, whatever we say, somehow does reflect some of our emotions, though may not be directly. To understand the very fundamental behavior of a human, we need to analyze these emotions through some emotional data, also called, the affect data. This data can be text, voice, facial expressions etc. Using this emotional data for analyzing the emotions also forms an interdisciplinary field, called Affective Computing. Computation of emotions is a very challenging task, much work has been done but many more increments are also possible. With the advent of social networking sites, many people tend to get attracted towards analyzing this very text available on these various sites. Analyzing this data over the Internet means we are spanning across the whole continent, going through all the cultures and communities across. This paper summarizes the previous works done in the field of textual emotion analysis based on various emotional models and computational approaches used.
情感构成了我们生活中非常重要和基本的方面。无论我们做什么,说什么,都在某种程度上反映了我们的一些情绪,尽管可能不是直接的。为了理解人类最基本的行为,我们需要通过一些情感数据来分析这些情绪,也被称为情感数据。这些数据可以是文本、声音、面部表情等。使用这些情绪数据来分析情绪也形成了一个跨学科的领域,称为情感计算。情绪的计算是一项非常具有挑战性的任务,很多工作已经完成,但更多的增量也是可能的。随着社交网站的出现,许多人倾向于分析这些不同网站上可用的文本。通过互联网分析这些数据意味着我们跨越了整个大陆,跨越了所有的文化和社区。本文总结了基于各种情感模型和计算方法的文本情感分析领域的研究成果。
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引用次数: 39
Design and analysis of 6T SRAM cell with NBL write assist technique using FinFET 基于FinFET的NBL写入辅助技术的6T SRAM单元设计与分析
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004047
S. Jain, N. Chaturvedi, S. Gurunarayanan
Using FinFET for designing of SRAM cells has shown a great deal of advantages over planar bulk devices due to the additional control on the gates and due to fully depleted behavior. The improvements have been noted in sub-threshold slope, drive currents, short-channel effects and mismatches. As the memories become denser, the stability of the SRAM cells becomes a point of great concern. This calls for the need of assist circuitry for improving the reliability and stability of the cells. In this work, a write assist technique is discussed to improve the stability of the device. This design decreases the WLCRIT drastically and reduces the write delay of the cell. The simulations have been carried out on HSPICE with 32 nm PTM libraries for FinFET.
由于对栅极的额外控制和完全耗尽行为,使用FinFET设计SRAM单元已经显示出比平面体器件有很大的优势。在亚阈值斜率、驱动电流、短通道效应和失配等方面都得到了改进。随着存储器密度的增大,SRAM单元的稳定性成为人们非常关注的问题。这就需要辅助电路来提高电池的可靠性和稳定性。在本工作中,讨论了一种写辅助技术,以提高器件的稳定性。该设计大大降低了WLCRIT,降低了小区的写延迟。利用32 nm PTM库在HSPICE上进行了FinFET的仿真。
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引用次数: 1
A review paper on IDS classification using KDD 99 and NSL KDD dataset in WEKA 基于KDD 99和NSL KDD数据在WEKA中的IDS分类综述
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004032
Gaurav Meena, R. Choudhary
In the Area of Security, Intrusion Detection System (IDS) form an individual trailing and plays an essential role in information Security. As the usability of the internet among the users in a wide area is increasing day by day so as the importance of security and to keep the system aware of the malicious activities is also increasing. It has the following limitations on low detection rate, high false alarm rate and so on which is been indicated by the traditional Intrusion Detection System. A performance of the classifier is based on the necessity of the terms of its effectiveness, and it is also concerned with the number of features to be examined by the IDS should be improved. In this, J48 is been performed on the hybrid IDS and is applied using J48 Decision Tree algorithm, J48 Decision Tree is used for the feature selection and Naive Bayes Algorithm. Basically Intrusion detection systems (IDSs) is been used on the basis of two fundamental approaches first the recognition of anomalous activities as it generally occurs on the turns from usual or unusual behavior and second misuse detection by observing unauthorized “signatures” of those recognized malicious assaults and classification vulnerabilities. Anomaly or the anonymous (behavior-based) IDSs presume the difference of normal behavior beneath attacks and achieve abnormal activities evaluated and recognized with predefined system or user behavior reference model. The main focus of this survey is on WEKA (Waikato Environment for Knowledge Analysis) Tool and its various algorithms of classification used for detecting and analyzing the various intrusions. Lastly, In this survey, we lead to elaborate the mostly used dataset in information security research KDDCUP and NSL KDD and its various components.
在安全领域,入侵检测系统(IDS)是一个独立的分支,在信息安全中起着至关重要的作用。随着互联网在广大用户中的可用性日益增加,安全的重要性和保持系统对恶意活动的意识也日益增加。传统的入侵检测系统存在检测率低、虚警率高等缺点。分类器的性能取决于其有效性的必要性,也与IDS要检查的特征的数量有关。其中,在混合IDS上进行J48,并使用J48决策树算法,J48决策树用于特征选择和朴素贝叶斯算法。基本上,入侵检测系统(ids)的使用基于两种基本方法:一是识别异常活动,因为它通常发生在正常或异常行为的转变中;二是通过观察被识别的恶意攻击和分类漏洞的未经授权的“签名”来进行误用检测。异常或匿名(基于行为的)ids假定攻击下正常行为的差异,通过预定义的系统或用户行为参考模型来评估和识别异常活动。本次调查的主要重点是WEKA (Waikato Environment for Knowledge Analysis)工具及其用于检测和分析各种入侵的各种分类算法。最后,在本调查中,我们详细阐述了信息安全研究中最常用的数据集KDDCUP和NSL KDD及其各个组成部分。
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引用次数: 75
High-rate code design and transmission in large MIMO systems 大型MIMO系统中高速率码的设计与传输
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003997
Arti M.K., Shimpee Seema
The problem of high-rate space-time block code (STBC) design and transmission is studied in a large multiple-input multiple-output (MIMO) system in Rayleigh fading environment. One attractive feature of large MIMO system is that a huge amount of data can be transmitted from transmitter to the receiver/multiple users. In practical systems, channel state information (CSI) is not available for decoding of the data, therefore, CSI needs to be estimated by using pilot symbols. It is shown in literature that very large number of time-slots are required for pilot transmission in large MIMO systems, it will lead to a very less number of time-slots for data transmission. In this case, a high-rate STBC is a possible way to transmit large amount of data in practical large MIMO systems. We propose a method to design a high-rate STBC by inserting the orthogonal STBCs of small dimensions and good rate. The concept of null space is used for decoding of transmitted data. The analytical performance of the proposed scheme is discussed in terms of symbol error rate.
研究了在瑞利衰落环境下大型多输入多输出(MIMO)系统中高速率空时分组码(STBC)的设计与传输问题。大型MIMO系统的一个吸引人的特点是可以将大量的数据从发射机传输到接收机/多个用户。在实际系统中,信道状态信息(CSI)无法用于数据解码,因此需要使用导频符号来估计CSI。文献表明,在大型MIMO系统中,导频传输需要非常大的时隙,这将导致用于数据传输的时隙数量非常少。在这种情况下,高速率STBC是实际大型MIMO系统中传输大量数据的一种可能方式。提出了一种通过插入小尺寸、高速率的正交STBC来设计高速率STBC的方法。零空间的概念被用于传输数据的解码。从符号错误率的角度讨论了该方案的分析性能。
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引用次数: 3
Model order reduction of high order LTI system using Genetic Algorithm 基于遗传算法的高阶LTI系统模型降阶
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003941
Seema Das, P. Patnaik, R. Jha
Any realistic model will have high complexity; in other words, it will require many state variables to be adequately described. The resulting complexity, i.e. number of first-order differential equations, is such that a simplification or model reduction will be needed in order to perform a simulation in an amount of time which is acceptable for the application at hand, or for the design of a low order controller which achieves desired objectives. Thus in all these cases reduced-order models are needed. The motivation for appropriate MOR is to obtain an accurate model of smaller order which can be easily simulated and implemented in hard ware with ease saving effort, cost and time. This paper proposes a numerically efficient model order reduction method using evolutionary technique, Genetic Algorithm. GA method is based on the minimization of the Integral Squared Error (ISE) between the transient responses of original higher order model and the reduced order model pertaining to a unit step input. This ISE is very useful in performance evaluation. The simulation result shows the effectiveness of the proposed scheme to obtain the stable 1st, 2nd and 3rd order reduced stable model from a stable 4th order original system with minimum error bound.
任何现实模型都具有很高的复杂性;换句话说,它需要充分描述许多状态变量。由此产生的复杂性,即一阶微分方程的数量,需要简化或模型缩减,以便在当前应用程序可接受的时间内执行模拟,或设计实现预期目标的低阶控制器。因此,在所有这些情况下都需要降阶模型。适当的MOR的动机是获得一个精确的小订单模型,可以很容易地在硬件中模拟和实现,从而节省精力、成本和时间。本文提出了一种利用进化技术——遗传算法的数值高效模型降阶方法。遗传算法是基于单位阶跃输入的原高阶模型与降阶模型的瞬态响应之间的积分平方误差(ISE)的最小化。这个ISE在绩效评估中非常有用。仿真结果表明,该方法能够以最小的误差界从稳定的四阶原始系统得到稳定的一、二、三阶降阶稳定模型。
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引用次数: 4
A triple Bandpass Frequency selective surface for enhancement in the transmission of WiMax and WLAN application 一种用于增强WiMax和WLAN传输应用的三带通频率选择表面
Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003966
D. Noor, S. Yadav, S. Yadav
While we are moving towards a digitized era where everything is getting digital, then the transmission of the signal at the desired frequency range becomes a matter of apprehension. Signal transmission has affected by various propagation effects, path loss, interference etc. As is well acknowledged that Frequency selective surface is a filter which has a stable frequency response even though the electromagnetic waves to surface are fluctuated. A Bandpass FSS is proposed in this paper that has stable frequency response as the proposed structure symmetrical and insensitive towards polarization. The proposed structure contains a single sided FR4 substrate with dielectric constant 4.4mm, thickness 1.6mm tangential loss 0.025 and the dimension of the unit cell is 0.24 λ × 0.24λ. The structure consists of a square and two octagons that provide stable frequency response at 2.4GHz, 3.5GHz, and 5.5GHz. The simulated results shows good insertion loss in both TM and TE wave modes at various angles of incidence. Simulation is carried out in CST microwave studio that is based on FDTD method in frequency domain solver.
当我们走向数字化时代,一切都变得数字化,那么在期望的频率范围内传输信号就成了一个棘手的问题。信号的传输受到各种传播效应、路径损耗、干扰等因素的影响。众所周知,频率选择表面是一种滤波器,即使到达表面的电磁波是波动的,它也具有稳定的频率响应。本文提出了一种具有稳定频率响应的带通FSS,其结构对称且对极化不敏感。该结构包含单面FR4衬底,介电常数为4.4mm,厚度为1.6mm,切向损耗为0.025,单元胞尺寸为0.24λ × 0.24λ。该结构由一个方形和两个八边形组成,在2.4GHz、3.5GHz和5.5GHz下提供稳定的频率响应。仿真结果表明,在不同入射角下,TM波和TE波都具有良好的插入损耗。在基于频域求解器FDTD方法的CST微波工作室中进行了仿真。
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引用次数: 2
期刊
2017 International Conference on Computer, Communications and Electronics (Comptelix)
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