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2017 IEEE International Conference on Electrical, Instrumentation and Communication Engineering (ICEICE)最新文献

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Emerging trends in small-cell technology 小蜂窝技术的新兴趋势
Anand S. Bhosle
In the emerging growth of wireless cellular technology, the indoor coverage has always been an important issue in cellular networks. Previously the indoor coverage was provided by outdoor antennas only, to increase the coverage and capacity of indoor environment, it's very costly to add extra outdoor cells (Macrocells) and it also create more problems with the interference; as more cell overlap each other. To overcome this problem of increasing the capacity and coverage area of indoor environment, small cell technology is introduced. The emerging small cell technology is low power and low-cost, Hence user and operator can deploy base station or radio access point at very low cost that operate in licensed and unlicensed spectrum to complement macro cell. This paper focused on different types of small cells(metrocell, microcell, picocell and femtocell) employed in indoor environment to provides improved capacity, cellular coverage in Homes/Enterprises/Metropolitan and small rural areas. The small cell technology plays a vital role in offloading the existing cellular (3G, 4G) network load to manage the spectrum more efficiently. This paper also focused on heterogeneous small cell network.
随着无线蜂窝技术的不断发展,室内覆盖一直是蜂窝网络中的一个重要问题。以前的室内覆盖仅由室外天线提供,为了增加室内环境的覆盖和容量,增加额外的室外基站(Macrocells)成本非常高,而且也会产生更多的干扰问题;因为更多的细胞相互重叠。为了克服增大室内环境容量和覆盖面积的难题,引入了小蜂窝技术。新兴的小蜂窝技术具有低功耗和低成本的特点,因此用户和运营商可以以非常低的成本部署基站或无线接入点,在许可和非许可频谱中运行,以补充宏蜂窝。本文重点介绍了在室内环境中使用的不同类型的小蜂窝(metrocell, microcell, piccell和femtocell),以提高家庭/企业/大都市和小农村地区的容量和蜂窝覆盖范围。小蜂窝技术在减轻现有蜂窝(3G、4G)网络负载以更有效地管理频谱方面起着至关重要的作用。本文还对异构小蜂窝网络进行了研究。
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引用次数: 5
Mobile application for aqua-monitoring system 水监测系统的移动应用程序
R. P. S. Sankar, J. N. G. Greeta, B. Kannapiran, K. Valarmathi
Monitoring based Mobile applications have been developed as the improvement of portable figuring and correspondence innovations. Mobile computing technologies enable the mobile users to make, get to, process, store and impart data without being obliged to a solitary area. The availability of Mobile computing technologies and smart phones gives new possibilities for a continuous monitoring of Aqua status for Water and for Shrimp and that allows an early detection of abnormal conditions of the shrimp and water. Our proposed Aqua-Monitoring system mainly monitors the condition of Shrimp and Water and in the abnormal conditions of Shrimp and Water it needs farmer and analyst to reduce the abnormality condition. The shrimp and water data's are collected and are returned in the format of SQLite server. Such Aqua-Monitoring system for Shrimp and Water used for monitoring capacities by means of cell phones through our proposed framework.
随着便携式计算和通信创新的改进,基于监控的移动应用程序得到了发展。移动计算技术使移动用户能够制造、获取、处理、存储和传递数据,而不必局限于一个单独的区域。移动计算技术和智能手机的可用性为持续监测水和虾的水状态提供了新的可能性,并且可以早期发现虾和水的异常情况。我们提出的Aqua-Monitoring系统主要监测虾和水的状况,在虾和水的异常情况下,需要养殖户和分析人员减少异常情况。收集虾和水的数据并以SQLite服务器的格式返回。这种虾和水的水监测系统通过我们提出的框架,通过手机监测能力。
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引用次数: 1
Comparative of performance for UPFC with DPFC UPFC与DPFC的性能比较
Akhib Khan Bahamani, G. M. S. Reddy, V. Ganesh
UPFC and DPFC are two important devices for power quality improvement. These FACTs devices are generally used between sending end and receiving end. This paper deals with comparison of UPFC & DPFC systems operating at same load and same sending voltage. A basic two bus system with UPFC is modelled and simulated. Basic DPFC system with multiple DVRs is also modelled and simulated. The results are compared in terms of real power, reactive power and THD. The result of comparison indicates that two bus system with DPFC gives better performance when compared to two bus system with UPFC.
UPFC和DPFC是改善电能质量的两种重要器件。这些FACTs设备一般用于发送端和接收端之间。本文对UPFC和DPFC系统在相同负载和相同发送电压下的性能进行了比较。对一个基本的双总线UPFC系统进行了建模和仿真。对基本的多dvr DPFC系统进行了建模和仿真。并对实际功率、无功功率和THD进行了比较。比较结果表明,采用DPFC的双总线系统比采用UPFC的双总线系统具有更好的性能。
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引用次数: 2
Investigating mechanical integrity in power transformer using sweep frequency response analysis (SFRA) 用扫描频响分析(SFRA)研究电力变压器的机械完整性
Priti Gite, A. S. Sindekar
Sweep Frequency Response Analysis (SFRA) is a demonstrated control for investigating the mechanical integrity such as core and bulk winding deformations, open circuit and short circuit, radial and axial buckling etc. A change in frequency response as measured by SFRA technique indicates a good graphical interpretation can give the exact location of fault inside the transformer.
扫描频响分析(SFRA)是一种研究机械完整性的有效方法,可用于研究堆芯和整体绕组变形、开路和短路、径向和轴向屈曲等。SFRA技术测得的频率响应变化表明,良好的图形解释可以给出变压器内部故障的准确位置。
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引用次数: 4
Design of SEPIC converter for BLDC motor from photovoltaic cell 光伏电池无刷直流电机SEPIC变换器设计
T. Raj, B. Kumar
This paper deals with the design of the SEPIC converter is connected to permanent magnet Brushless Direct Current motor through VSI (voltage source inverter). The SEPIC converter values has been designed based upon the transfer function and the input is get from the Renewable Energy Source as Solar PV cells. The Maximum power should be extracting by using perturb and observe technique. The ripples should be reduced by the low pass filter. The result should be obtained from the MATLAB/SIMULINK software.
本文设计了一种SEPIC变换器,通过VSI(电压源逆变器)与永磁无刷直流电机相连接。基于传递函数设计了SEPIC转换器的值,输入来自太阳能光伏电池等可再生能源。采用扰动观测技术提取最大功率。波纹应该通过低通滤波器来减小。结果应在MATLAB/SIMULINK软件中得到。
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引用次数: 10
DWT DCT based new image watermarking algorithm to improve the imperceptibility and robustness 基于DWT DCT的新图像水印算法,提高了图像的不可感知性和鲁棒性
M. Veni, T. Meyyappan
Digital watermarking technique is used to provide the intellectual property rights. This technique proves the proprietor of the content. The authentication and identification of the ownership protect the data from intruders. The copyright protection protects the multimedia data from modifying, illegal copying and removing the data. The binary image is taken as the watermark, it scrambles first and then entrenched into the original image. In the proposed method, a blind digital watermarking algorithm is provided using DWT and DCT. HL coefficient is puzzled first before embedding the scrambled image into a HL coefficient of the cover image. This ensures additional security to the watermark entrenched image. In proposed method, invisible quality of watermarked image improves compared to existing methods. The proposed method obtains the higher PSNR value is 47.2724 than in existing methods. The proposed method is strong against attacks using the security strength.
采用数字水印技术提供知识产权保护。这种技术证明了内容的所有者。所有权的身份验证和标识可以保护数据免受入侵者的侵害。版权保护保护多媒体数据不被修改、非法复制和删除。将二值图像作为水印,先进行置乱,然后嵌入到原始图像中。在该方法中,提出了一种基于DWT和DCT的盲数字水印算法。在将打乱后的图像嵌入到封面图像的HL系数中之前,先对HL系数进行求解。这确保了水印嵌入图像的额外安全性。与现有方法相比,该方法提高了水印图像的不可见性。与现有方法相比,该方法获得了更高的PSNR值47.2724。该方法利用安全强度对攻击具有很强的抗攻击能力。
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引用次数: 7
Power quality in a smart grid distribution system using automatic OLTC 采用自动OLTC的智能电网配电系统的电能质量
T. Thenmozhi, E. Kumar, R. M. Kumar, Dinesh Pothugunta, S. Harish.
A smart grid is an evolved grid system that manages electricity demand in a sustainable, reliable and economic manner, built on advanced infrastructure and tuned to facilitate the integration of all involved. The smart grid is the future for electrical systems. To maintain the voltage throughout the day, the variation of load is the main criteria. It is more in the peak hours, medium in the rest of the hours and less in the midnight to early morning. This variation is due to the industrial and residential load patterns. This paper mainly focused on distribution of quality of power. The main criteria required for all the devices are the rated voltage. It plays vital role in power quality. In this paper, it is planned to provide a transformer with multiple taps and selecting the taps required for the moment will be automatically selected by the on-load tap changeover system which is operated by the controller. Here, voltage transducers are used to sense the change in voltages, ADC will convert the analog signals into digital signals. These digital signals are interfaced with computer which in turn operates the on-load tap changers. Suitable taps are selected and its driver relays are operated by the computer through optocoupler and switching transistors. In this paper a computer acts as a controller with the aid of the C software.
智能电网是一种不断发展的电网系统,以可持续、可靠和经济的方式管理电力需求,建立在先进的基础设施上,并进行调整,以促进所有相关方的整合。智能电网是电力系统的未来。要维持全天的电压,负荷的变化是主要标准。高峰时段用电较多,其余时间用电适中,午夜至清晨用电较少。这种变化是由于工业和住宅负荷模式。本文主要研究电能质量的分布。所有设备的主要要求标准是额定电压。它对电能质量起着至关重要的作用。本文计划提供一个具有多个抽头的变压器,由控制器操作的有载抽头转换系统自动选择当前所需的抽头。在这里,电压传感器被用来感知电压的变化,ADC将模拟信号转换成数字信号。这些数字信号与计算机连接,计算机依次操作有载分接开关。选择合适的抽头,计算机通过光耦和开关晶体管控制其驱动继电器。本文采用计算机作为控制器,借助C语言软件进行控制。
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引用次数: 1
Improved design of sliding-mode controller based on the incremental conductance MPPT algorithm for PV applications 基于增量电导MPPT算法的滑模控制器改进设计
C. Ananthi, B. Kannapiran
Solar Photovoltaic system plays an important role in power generation system. The output power produced in the photovoltaic modules relies on upon solar radiation and temperature of the solar cells. In this paper an utilization of sliding mode control technique is connected to track maximum power of photovoltaic cells. This usage depends on grid connected dc to dc switching converter. This is typically connected between the PV modules and the inverter. In this control framework, it is important to measure the PV array output power and to change the duty cycle of the DC/DC converter control signal. This PV converter is controlled by enhanced designing technique of sliding mode controller which drives the PV voltage with reference of an external MPPT algorithm. To test the robustness of this control, we compared the results obtained from the Perturb and Observe (P&O) technique with the proposed incremental conductance (InC) method. Obtained results show an improved performance of InC algorithm with sliding mode control strategy under various parameter conditions.
太阳能光伏发电系统在发电系统中占有重要地位。光伏组件产生的输出功率取决于太阳辐射和太阳能电池的温度。本文将滑模控制技术应用于光伏电池的最大功率跟踪。这种用法取决于电网连接的直流到直流开关变换器。这通常连接在光伏模块和逆变器之间。在这种控制框架中,重要的是测量光伏阵列输出功率和改变DC/DC变换器控制信号的占空比。该变流器采用改进的滑模控制器设计技术控制,该控制器参照外部MPPT算法驱动PV电压。为了测试该控制的鲁棒性,我们将扰动和观察(P&O)技术获得的结果与提出的增量电导(InC)方法进行了比较。结果表明,采用滑模控制策略的InC算法在各种参数条件下都能提高算法的性能。
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引用次数: 8
Area and delay carry select adder using Brent Kung architecture 面积和延迟进位选择加法器采用Brent Kung结构
R. Krishnamoorthy, S. Durgadevi, S. Maheshwari
Carry Select Adder (CSA) architectures are proposed using parallel prefix adders. Instead of using dual Ripple Carry Adders (RCA), parallel prefix adder Brent Kung (BK) adder is used to design Regular Linear CSA. Carry Select Adder is a compromise between RCA and CLA in term of area and delay. Delay of RCA is large therefore we have replaced it with parallel prefix adder which gives fast results. In this system, structures of 16-Bit Regular Linear Brent Kung CSA, Modified Linear BK CSA, Regular Square Root (SQRT) BK CSA and Modified SQRT BK CSA are designed. These adder architectures are calculated at different input voltages.
提出了采用并行前缀加法器的进位选择加法器(CSA)结构。采用并行前缀加法器Brent Kung (BK)加法器代替双纹波进位加法器(RCA)来设计正则线性CSA。进位选择加法器是RCA和CLA在面积和时延方面的折衷方案。由于RCA的延迟较大,因此我们采用并行前缀加法器来代替它,从而获得快速的结果。在该系统中,设计了16位正则线性Brent Kung CSA、修正线性BK CSA、正则平方根(SQRT) BK CSA和修正SQRT BK CSA结构。这些加法器架构是在不同的输入电压下计算的。
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引用次数: 0
A novel security mechanism using hybrid cryptography algorithms 一种采用混合密码算法的新型安全机制
M. Harini, K. P. Gowri, C. Pavithra, M. Pradhiba Selvarani
Data security is a primary concern for every communication system. Communication becomes an essential tool for any business, education, defense services etc. It is essential to transfer data safe and secure. At present, various cryptography algorithms have been proposed and implemented. Those algorithms are classified into symmetric and asymmetric algorithms based on the number of keys used. Even though several algorithms are used for data security, they are compromise the security at the certain period. Now the idea is to combine the several secure algorithms to provide a highly secure environment for data transmission. The algorithms that are going to be combined are AES symmetric cryptographic algorithm, RSA asymmetric algorithm and MD5 hashing algorithm. With these three algorithms, we can ensure three cryptography primitives confidentiality, authentication and integrity of data.
数据安全是每个通信系统的主要关注点。沟通成为任何商业、教育、国防服务等的重要工具。安全可靠地传输数据至关重要。目前,已经提出并实现了各种加密算法。这些算法根据使用的密钥数量分为对称算法和非对称算法。尽管采用了多种算法来保证数据的安全,但在一定时期内,这些算法都会对数据的安全性造成一定的危害。现在的想法是将几种安全算法结合起来,为数据传输提供一个高度安全的环境。将要组合的算法有AES对称加密算法、RSA非对称算法和MD5散列算法。通过这三种算法,可以保证数据的保密性、认证性和完整性。
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引用次数: 17
期刊
2017 IEEE International Conference on Electrical, Instrumentation and Communication Engineering (ICEICE)
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