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2013 5th International Conference on Computational Intelligence and Communication Networks最新文献

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Data Communication Security of Advanced Metering Infrastructure in Smart Grid 智能电网中先进计量基础设施的数据通信安全
Tanvi Mehra, V. Dehalwar, M. Kolhe
Advanced Metering Infrastructure (AMI) is very critical part for wired/wireless communication in Smart Grid. It involves communication of vital smart metering data to central control center for smooth functioning of smart grid. Security and reliability of data is of paramount importance for operational reliability of smart grid. AMI network is susceptible to many cyber security threats and attacks. Therefore it is desirable to prevent the data from such vulnerabilities. The paper proposes two-phase method to provide security of data using dedicated authentication server which inhibits malicious and unauthorized nodes to gain access to AMI communication network. Secure environment is created by this method that helps in achieving better throughput and packet delivery ratio. Thus, it improves the security and performance of the network.
高级计量基础设施(AMI)是智能电网中有线/无线通信的重要组成部分。它涉及到重要的智能计量数据与中央控制中心的通信,以保证智能电网的正常运行。数据的安全性和可靠性对智能电网的运行可靠性至关重要。AMI网络容易受到多种网络安全威胁和攻击。因此,防止数据受到此类漏洞的攻击是可取的。本文提出了两阶段的方法,利用专用的认证服务器来提供数据的安全性,从而阻止恶意和未经授权的节点访问AMI通信网络。通过这种方法创建安全的环境,有助于实现更好的吞吐量和数据包传输率。从而提高了网络的安全性和性能。
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引用次数: 14
Design of Digital IIR Filter for Noise Reduction in ECG Signal 用于心电信号降噪的数字IIR滤波器设计
Nalini Singh, S. Ayub, J. Saini
Electrocardiogram (ECG) signal has been widely used in cardiac pathology to detect heart disease. A digital infinite-impulse response (IIR) filter design is proposed in this paper. This includes an implementation and evaluation of butter worth low pass infinite impulse response filter method to remove high frequency noise and for this filter is applied to noisy ECG data sample and original sample are taken as reference signal. The suggested method considers the magnitude response for choosing the cutoff frequency and the FFT spectrum estimate response to find the lowest filter order. The structure and the coefficients of the digital IIR filter are designed using FDA tool in MATLAB. The filter output's average power before and after filtration are calculated using FFT and for simulation of this filter, the hardware is designed using micro controller At mega 16 A. For hardware designing the samples taken are record no. 108 and record no. 119 (taken from MIT-BIH database, ML II signal). Here samples are taken from MIT-BIH arrhythmia database (mitdb) ML II are used.
心电图信号在心脏病理学中被广泛应用于检测心脏疾病。提出了一种数字无限脉冲响应(IIR)滤波器设计方案。本文介绍了一种用于去除高频噪声的低通无限脉冲响应滤波方法的实现和评价,并将该滤波器应用于有噪声的心电数据样本,并以原始样本作为参考信号。该方法考虑了选择截止频率的幅值响应和FFT频谱估计响应来寻找最低滤波器阶数。利用MATLAB中的FDA工具设计了数字IIR滤波器的结构和系数。利用FFT计算滤波前后滤波器输出的平均功率,并采用mega16 A的微控制器设计硬件,对滤波器进行仿真。对于硬件设计,所取样品为记录编号。108号和记录号。119(取自MIT-BIH数据库,ML II信号)。这里的样本取自MIT-BIH心律失常数据库(mitdb) ML II。
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引用次数: 23
Mobile Forensics Challenges and Admissibility of Electronic Evidences in India 印度移动取证挑战和电子证据的可采性
D. Yadav, Manuj Mishra, S. Prakash
Technological development in India is going to be highly dependent on mobile communication technology. The innovation boom in this particular sector is expected to reach over one billion subscribers by the end of year 2013. The prime benefit of mobile technology and services is providing reach ability to all sectors of the subscriber's choice. New devices and services are being introduced rapidly. These are more smart and powerful in terms of computing capability, storage capacity with scalability and portability in size. The advantages make this technology frequently adaptable to every group of people. The influence and rapid development in this technology pose a serious security challenge. High dependency on technology ensures its involvement in users' activities. It holds true for mobile technology in respect to crime. The amount and quality of data associated with mobile devices and services could be valuable in any investigation. Therefore mobile forensics is important for law enforcement and investigators, as it aims at professional and legally acknowledged methods for analysis. In the paper, use of mobile devices in various activities, and mobile forensics is briefly introduced. It also examines the challenges of mobile forensics investigation and admissibility of acquired mobile data as electronic evidence in Indian jurisdiction. This paper highlights some critical stages of mobile forensics and weaknesses in the acquisition of digital evidences from mobile devices. Finally this paper contains a step by step guide to the acquisition and preservation of data from mobile devices and examination of those data in regard to respective Indian Acts to admit those digital evidences in Indian courts.
印度的技术发展将高度依赖于移动通信技术。到2013年底,这一领域的创新热潮预计将超过10亿用户。移动技术和服务的主要好处是为用户选择的所有部门提供覆盖能力。新的设备和服务正在迅速推出。它们在计算能力、存储容量、可扩展性和可移植性方面更加智能和强大。这些优点使这项技术经常适用于每一群人。该技术的影响和快速发展对安全提出了严峻的挑战。对技术的高度依赖确保了它参与用户的活动。在犯罪方面,移动技术也是如此。与移动设备和服务相关的数据的数量和质量在任何调查中都是有价值的。因此,移动取证对于执法人员和调查人员来说非常重要,因为它旨在采用专业和法律认可的分析方法。本文对移动设备在各种活动中的使用,以及移动取证进行了简要介绍。它还审查了移动取证调查的挑战以及在印度管辖范围内获得的移动数据作为电子证据的可采性。本文重点介绍了移动取证的几个关键阶段和从移动设备获取数字证据的弱点。最后,本文包含了关于从移动设备获取和保存数据的逐步指南,以及关于在印度法院承认这些数字证据的各自印度法案对这些数据的审查。
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引用次数: 4
Rectangular Microstrip Patch Antenna with U-Shaped DGS Structure for Wireless Applications 用于无线应用的u型DGS结构矩形微带贴片天线
Sumit Kaushik, S. Dhillon, Anupama Marwaha
A compact micro strip patch antenna with wide operational bandwidth is presented. The proposed design consists of rectangular patch antenna in ring shaped with U-slots cut in ground. Antenna is fed by micro strip line. The performance of rectangular patch antenna has been discussed and analyzed by modification of the patch dimensions. The proposed antenna is having bandwidth of 1300 MHz, gain 2.65 dBi and return loss -28.82 dB. The proposed antenna has been analyzed using IE3D and simulated results are presented in terms of bandwidth, gain and return loss.
提出了一种结构紧凑、工作带宽宽的微带贴片天线。提出的设计方案是环形矩形贴片天线,并在地面上开u型槽。天线由微带线馈电。通过调整贴片尺寸,对矩形贴片天线的性能进行了讨论和分析。该天线的带宽为1300 MHz,增益为2.65 dBi,回波损耗为-28.82 dB。利用IE3D对该天线进行了分析,并给出了带宽、增益和回波损耗方面的仿真结果。
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引用次数: 13
Power Grid Frequency Prediction Using ANN Considering the Stochasticity of Wind Power 考虑风电随机性的人工神经网络电网频率预测
S. Kaur, S. Agrawal, Y. P. Verma
Introduction of Availability Based Tariff (ABT), signifies the importance of frequency prediction by bringing in the concept of frequency sensitive unscheduled interchange (UI) charge of energy drawn in deviation from the pre-committed daily schedule. Accurate predicted frequency facilitates the system operators in the decision process of precise generation scheduling (GS). Traditional approaches of frequency prediction are not producing satisfactory results. In this paper we considered the dependency of frequency on various parameters that affect the frequency regime in power system. An Artificial Neural Network (ANN) based model (Back propagation network) has been used in this paper to solve this problem. The data obtained from North Regional Load Dispatch Center (NRLDC) for the period from January 2005 to December 2007 has been used for training, validating and testing the ANN model. The performance of proposed model has been analyzed using the error indices, Absolute Percentage Error (APE) and Mean Absolute Percentage Error (MAPE). Simulation results show the superiority of the proposed ANN model to solve the frequency prediction problem over the traditional techniques, in terms of reduced MAPE.
引入基于可用性的电价(ABT),通过引入频率敏感的非计划交换(UI)的概念来表明频率预测的重要性,该概念是指偏离预先承诺的每日计划所消耗的能量。准确的预测频率为系统操作者进行精确发电调度决策提供了方便。传统的频率预测方法不能产生令人满意的结果。本文考虑了影响电力系统频率状态的各种参数对频率的依赖关系。本文采用一种基于人工神经网络(ANN)的模型(反向传播网络)来解决这一问题。利用2005年1月至2007年12月从北方地区负荷调度中心(NRLDC)获得的数据,对人工神经网络模型进行了训练、验证和测试。利用绝对百分比误差(APE)和平均绝对百分比误差(MAPE)这两个误差指标对模型的性能进行了分析。仿真结果表明,在减少MAPE方面,所提出的人工神经网络模型在解决频率预测问题方面优于传统技术。
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引用次数: 6
An Adaptive Block Pinning Cache for Reducing Network Traffic in Multi-core Architectures 一种用于减少多核体系结构网络流量的自适应块固定缓存
N. Chaturvedi, S. Gurunarayanan
With advent of new technologies there is exponential increase in multi-core processor (CMP) cache sizes accompanied by growing on-chip wire delays make it difficult to implement traditional caches with single, uniform access latency. Non-Uniform Cache Architecture (NUCA) designs have been proposed to address this issue. A NUCA partitions the complete cache memory into smaller multiple banks and allows banks near the processor cores to have lower access latencies than those further away, thus reducing the effects of the cache's internal wire delays. Traditionally, NUCA organizations have been classified as static (S-NUCA) and dynamic (D- NUCA). While in S-NUCA a data block is mapped to a unique bank in the NUCA cache, D-NUCA allows a data block to be mapped in multiple banks. In D-NUCA designs a data blocks can migrate towards the processor core that access them most frequently. This migration of data blocks will increase network traffic. The short life time of data blocks and low spatial locality in many applications results in eviction of block with few unused words. This effectively increases miss rate, and waste on chip network bandwidth. Unused word transfers also wastes a large fraction of on chip energy consumption.In this paper, we present an efficient and implementable cache design that eliminate unnecessary coherence traffic and match data movements to an applications spatial locality. It also presents one way to scale on-chip coherence with less costeffective techniques such as shared caches augmented to track cached copies, explicit eviction notification and hierarchal design. Based on our scalability analysis of this cache design we predict that this design consistently reduce miss rate and improve the fraction of data transmitted that is actually utilized by the application.
随着新技术的出现,多核处理器(CMP)缓存大小呈指数级增长,同时片上线路延迟不断增长,这使得实现具有单一、统一访问延迟的传统缓存变得困难。非统一缓存架构(NUCA)设计已经被提出来解决这个问题。NUCA将整个缓存内存划分为较小的多个银行,并允许靠近处理器核心的银行具有比远离的银行更低的访问延迟,从而减少缓存内部线路延迟的影响。传统上,NUCA组织被分为静态(S-NUCA)和动态(D- NUCA)。在S-NUCA中,数据块映射到NUCA缓存中的唯一银行,而D-NUCA允许数据块映射到多个银行。在D-NUCA设计中,数据块可以迁移到最频繁访问它们的处理器核心。这种数据块的迁移将增加网络流量。在许多应用中,由于数据块的寿命短和空间局部性低,导致数据块中很少有未使用的字被移除。这有效地增加了遗漏率,并浪费了芯片网络带宽。未使用的字传输也浪费了芯片能耗的很大一部分。在本文中,我们提出了一种高效且可实现的缓存设计,该设计消除了不必要的相干流量并将数据移动匹配到应用程序的空间局部性。它还提供了一种使用低成本技术(如增强共享缓存以跟踪缓存副本、显式驱逐通知和分层设计)扩展片上一致性的方法。根据我们对这种缓存设计的可伸缩性分析,我们预测这种设计可以持续降低丢失率,并提高应用程序实际利用的传输数据的比例。
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引用次数: 0
Bandwidth Improvement of Patch Antennas with Electromagnetic Bandgap (EBG) Structures by Using Square Shaped Unit Cells in Circular Pattern 利用圆形方阵提高电磁带隙贴片天线的带宽
Ruchika Gupta, Mithilesh Kumar
Periodic structures can help in improving the micro strip patch antenna performance by using their unique properties. The designed antenna has a compact structure with a total size of 60x60mm2. This antenna design is simulated using FR-4 substrate with dielectric constant of 4.1 and thickness of 1.50mm on electromagnetic (EM) simulation software. By placing the square shaped unit cells in circular pattern, the bandwidth of micro strip patch antenna is improved. The integrated antenna exhibits a wider bandwidth as compared to the conventional one. The bandwidth is increased to 19.26% that is much wider than the conventional one having bandwidth 4.38%. It is also found that on increasing the radii of vias, the bandwidth of antenna slightly decreases. The simulated results show the good agreement with the proposed patch antenna.
周期结构可以利用其独特的特性来改善微带贴片天线的性能。设计的天线结构紧凑,总尺寸为60x60mm2。本天线设计采用介电常数为4.1、厚度为1.50mm的FR-4衬底在电磁仿真软件上进行仿真。通过将方形单元格以圆形方式放置,提高了微带贴片天线的带宽。与传统天线相比,集成天线具有更宽的带宽。带宽增加到19.26%,比传统的带宽4.38%宽得多。随着通孔半径的增大,天线的带宽略有下降。仿真结果与所提出的贴片天线吻合较好。
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引用次数: 0
Compact Tri Band Frequency Reconfigurable L-Slot Octagonal Shape Patch Antenna 紧凑型三频带频率可重构l槽八角形贴片天线
R. Kumari, Mithilesh Kumar
A frequency reconfigurable octagonal shaped patch antenna is designed and its properties are studied. In this paper, a micro strip patch antenna. In this antenna design patch of the antenna is separated into three parts by cutting the open ended L-slot on the both side of the patch. Here four PIN diodes are used for the operation. When the diode D1 and D3 is on than the antenna works on the frequency 4.6688 GHz, 7.8864 GHz and 10.662 GHz while the D2 and D4 is on state than this antenna works for the 5.1893 GHz, 8.2492 GHz and 11.467 GHz. This compact size antenna with the dimensions of the 25 × 28 mm2 is design on the FR-4 substrate of the thickness h = 0.8 mm and the dielectric constant of this material is 4.4.
设计了一种频率可重构的八角形贴片天线,并对其性能进行了研究。本文设计了一种微带贴片天线。在本天线设计中,通过切割贴片两侧的开口l型槽,将天线的贴片分成三部分。这里四个PIN二极管用于操作。D1和D3导通时,天线工作在4.6688 GHz、7.8864 GHz和10.662 GHz频段;D2和D4导通时,天线工作在5.1893 GHz、8.2492 GHz和11.467 GHz频段。在厚度为h = 0.8 mm,介电常数为4.4的FR-4衬底上设计了尺寸为25 × 28 mm2的小型天线。
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引用次数: 4
An Indoor Optical Wireless System Dedicated to Healthcare Using QPSK Modulation 一种使用QPSK调制的医疗保健专用室内无线光学系统
S. Chaudhary, Anurag Srivastava
In this paper, Indoor optical wireless infrared (IR) technology has been investigated for wireless health care monitoring of patient in the hospital environments. Monitoring provides the continuous measurement of vital sign to secure the patient in hospital. For the purpose of movement of patient we concentrate on most simplest mobile IR type i.e. LOS (line of sight) propagation method with an QPSK (quadrature phase shift keying) modulation technique within the hospital room under mobility constraints. A mobile channel model is developed in the hospital room through the study of variation of the distance between transmitter and receiver. We consider two mobility scenarios, one in 2 dimensions (2D) for a fixed transmitter height and another in 3D. In both mobility scenarios, the probability of link failure (Outage Probability) between transmitter and receiver has been calculated with the help of channel gain distribution due to variation on the distance (d) by taking two distribution of the channel, first one is uniform distribution (patient is moving uniformly) and second one is Gaussian distribution. By calculating outage probability the impact of the patient mobility on the quality of services and data rate for a reliable wireless monitoring system has been investigated.
本文研究了室内光学无线红外(IR)技术在医院环境下对患者进行无线医疗监护的应用。监测提供了生命体征的连续测量,以确保患者在医院的安全。为了患者的移动目的,我们专注于最简单的移动红外类型,即在移动受限的病房内使用QPSK(正交相移键控)调制技术的LOS(视线)传播方法。通过对收发距离变化的研究,建立了病房移动信道模型。我们考虑了两种移动场景,一种是固定发射机高度的二维移动场景,另一种是三维移动场景。在这两种移动情况下,通过取信道的两种分布,一种是均匀分布(患者均匀移动),另一种是高斯分布,借助信道增益分布(d),计算了发送端和接收端之间由于距离变化而发生链路故障的概率(中断概率)。通过计算中断概率,研究了病人移动对可靠无线监测系统的服务质量和数据速率的影响。
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引用次数: 1
Deportment of Logs for Securing the Host System 保护主机系统的日志部门
Pavitra Chauhan, Nikita Singh, N. Chandra
Logs are the files which contain the information about all the events occurring on the system. Logs have been playing a vital role in providing all kinds of information which can be used for several purposes like detecting a suspicious behaviour over the system. The aim of this paper is to study, analyse and generate results by observing host. Log files consist of different header information which can be further used to determine if any kind of malicious activity is discovered then that activity can be traced and blocked.
日志是包含系统上发生的所有事件信息的文件。日志在提供各种信息方面发挥着至关重要的作用,这些信息可用于多种目的,例如检测系统上的可疑行为。本文的目的是通过对宿主的观察来研究、分析并得出结果。日志文件由不同的头信息组成,可以进一步用于确定是否发现了任何类型的恶意活动,然后可以跟踪和阻止该活动。
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引用次数: 1
期刊
2013 5th International Conference on Computational Intelligence and Communication Networks
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