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2015 2nd International Conference on Electronics and Communication Systems (ICECS)最新文献

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An approach for MapReduce based log analysis using Hadoop 使用 Hadoop 进行基于 MapReduce 的日志分析的方法
Hemant Hingave, R. Ingle
Log is the main source of system operation status, user behavior, system's actions etc. Log analysis system needs not only the massive and stable data processing ability but also the adaptation to a variety of scenarios under the requirement of efficiency and performance, which can't be achieved from available standalone analysis tools or even single computing framework. Hence we propose a log analyzer with the combination of Hadoop and Map-Reduce paradigm. The joint of Hadoop and MapReduce programming tools makes it possible to provide batch analysis in minimum response time and in-memory computing capacity in order to process log in a high available, efficient and stable way.
日志是系统运行状态、用户行为、系统操作等信息的主要来源。日志分析系统不仅需要海量、稳定的数据处理能力,还需要在高效、高性能的要求下适应各种场景,而这些都是现有的独立分析工具甚至单一计算框架无法实现的。因此,我们提出了一种结合 Hadoop 和 Map-Reduce 范式的日志分析器。Hadoop 和 MapReduce 编程工具的结合可以在最短的响应时间内提供批量分析,并提高内存计算能力,从而以可用、高效和稳定的方式处理日志。
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引用次数: 17
Wired network services in mobile phones 移动电话中的有线网络服务
S. Reddy, Ashish Panchal, Shailendra, B. Patil
Mobile communication in today's world means a lot to the human kind, many deals are made and others are broken, within seconds. That is because of our sophisticated methods of transporting the data at very high speeds and to very long distances. That is also because we kept on improving the method of serving the connections as the no of connections kept on increasing. Methods like TDMA, CDMA, and FDMA, etc. are few basic techniques in communication. Also the architecture of wireless communication shows the areas where connections are provided are divided into CELLS, which are the basic blocks for wireless communication. With the intervention of the wireless system for making calls, the wired communication, to which CELL has no relation has almost been neglected. This also forced the communication giants to upgrade to wireless service along with the existing wired networks.
当今世界的移动通信对人类来说意义重大,许多交易在几秒钟内达成,也有一些交易被打破。这是因为我们采用了非常先进的方法,能够以非常高的速度和非常远的距离传输数据。这也是因为随着连接数量的不断增加,我们不断改进为连接提供服务的方法。TDMA、CDMA和FDMA等方法是通信中的几种基本技术。此外,无线通信的体系结构显示,提供连接的区域被划分为cell,这些cell是无线通信的基本模块。随着无线通话系统的介入,与CELL无关的有线通信几乎被忽略了。这也迫使通信巨头们在现有有线网络的基础上升级为无线服务。
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引用次数: 0
An empirical research into the effect of blended learning on English writing learning in institutions of higher vocational education 混合式学习对高职英语写作学习效果的实证研究
Zhang Ming-yong
This paper tries to identify the effect of blended learning teaching mode on English writing teaching and learning in institutions of higher vocational education by conducting an experiment with the Academic English Writing course with blended learning mode. Through a SPSS statistic analysis of the pretest and posttest results of the experiment and a questionnaire, the author finally finds out that blended learning plays a positive role in the improvement of students English writing skill, it is accepted by students in institutions of higher vocational education in China, and that it can help to enhance students ability to study autonomously.
本文通过对《学术英语写作》课程采用混合式学习模式进行实验,探讨混合式学习教学模式对高职院校英语写作教学的影响。通过SPSS统计分析实验的前测和后测结果以及问卷调查,笔者最终发现混合式学习对学生英语写作能力的提高有积极的作用,为中国高职院校学生所接受,有助于提高学生的自主学习能力。
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引用次数: 1
A review of recent Peer-to-Peer botnet detection techniques 最近的点对点僵尸网络检测技术综述
Priyanka, M. Dave
Peer-to-Peer (P2P) botnets have emerged as a serious threat against the network security. They are used to carry out various illicit activities like click fraud, DDOS attacks and for information exfiltration. These botnets use distributed concept for command dissemination. These botnets are resilient to dynamic churn and to take-down attempts. Earlier P2P botnet detection techniques have some shortcomings such as they have less accuracy, unable to detect stealthy botnets and advanced botnets using fast-flux networks. In this paper, we list recent P2P botnet detection techniques that overcome the weaknesses of previous techniques with higher detection accuracy. We also discuss various such techniques, their advantages, accuracy and the weaknesses they too are having. However, two or more techniques can be used together to have more accurate and robust P2P botnet detection.
P2P僵尸网络已成为网络安全的严重威胁。它们被用来进行各种非法活动,如点击欺诈、DDOS攻击和信息泄露。这些僵尸网络使用分布式概念进行命令传播。这些僵尸网络对动态流失和撤掉尝试具有弹性。以往的P2P僵尸网络检测技术存在精度不高、无法检测隐身僵尸网络和使用快速通量网络的高级僵尸网络等缺点。在本文中,我们列出了最近的P2P僵尸网络检测技术,这些技术克服了以前技术的缺点,具有更高的检测精度。我们还讨论了各种这样的技术,它们的优点,准确性和它们也有弱点。然而,两种或多种技术可以一起使用,以获得更准确和鲁棒的P2P僵尸网络检测。
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引用次数: 1
A SURVEY: Duty cycle based routing and scheduling in wireless sensor networks 无线传感器网络中基于占空比的路由和调度研究综述
R. Nithya, N. Mahendran
Wireless sensor networks consist of spatially distributed sensor nodes, which can sense the environment by collecting, processing and transmitting the data to sink node. A critical issue in wireless sensor networks since most sensors is equipped with non-rechargeable batteries. The lifetime of a sensor network can be extended by jointly applying different techniques of scheduling and routing schemes also brings great challenges to the design of efficient distributed routing protocols for multi-hop wireless sensor networks. In scheduling algorithms, the nodes are arranged to sleep when they are not in use. The main purpose of scheduling algorithms is to minimize resource starvation and to ensure fairness amongst the parties utilizing the resources. The routing can be applied to wireless sensor networks for reducing energy consumption caused by retransmissions and dynamically detouring critical sensor nodes with less energy. To achieve network lifetime maximization of wireless sensor network through joint routing schemes and scheduling algorithms. This paper surveys the latest progresses in scheduling and routing schemes.
无线传感器网络由空间分布的传感器节点组成,这些节点通过采集、处理数据并将数据传输给汇聚节点来感知环境。这是无线传感器网络中的一个关键问题,因为大多数传感器都配备了不可充电电池。传感器网络的生存期可以通过联合应用不同的调度和路由方案来延长,这也给多跳无线传感器网络高效分布式路由协议的设计带来了很大的挑战。在调度算法中,节点在不使用时被安排为休眠状态。调度算法的主要目的是最大限度地减少资源饥饿,并确保各方使用资源的公平性。该路由可应用于无线传感器网络,以减少重传引起的能量消耗,并以较少的能量动态绕行关键传感器节点。通过联合路由方案和调度算法实现无线传感器网络的网络寿命最大化。本文综述了调度和路由方案的最新进展。
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引用次数: 9
Low cost reception scheme for MIMO cognitive radio MIMO认知无线电低成本接收方案
Mr. P. Vijayakumar, Dr.S. Malarvizhi, M. Hariprasath
A Cognitive Radio is a Software Defined Radio (SDR). The Cognitive radio network is capable to sense and analyze its surrounding environment as well as reconfigure its operation in accordance with this radio environment. In this way, based on the available Channel State Information (CSI), the cognitive radio network may dynamically access the spectrum. MIMO based cognitive radio system enabled dynamically simultaneous usage of a radio spectrum for this beam forming signal processing technique is used. Beam forming is a technique in which the directionality of transmission and reception of radio signals can be controlled. Modern wireless technology depends on beam forming technology in order to provide higher data rates, improved coverage and also used to share the spectrum with the other users. Hardware complexity is one of the main issue in MIMO based wireless system which require N number of RF chains for N antenna systems. Antenna sub array formation (ASF) scheme is an optimization technique which can be used to reduce the RF chain required such a way the capacity can be improved. This will reduce the cost of the hardware much and we can realize low cost hardware system. Usually the two process of sub array formation and beam forming are done as separate process but in this paper the joint beam forming and sub array formation is done such a way the secondary user capacity will be improved and to avoid two computational complex process. Antenna sub array formation (ASF) scheme is employed to maximize the Signal to Interference Ratio (SINR) by using all antenna elements. In Antenna sub array formation the Radio Frequency chain is allocated to sub array of elements.
认知无线电是一种软件定义无线电(SDR)。认知无线电网络能够感知和分析其周围环境,并根据该无线电环境重新配置其操作。这样,基于可用的信道状态信息(CSI),认知无线电网络可以动态地访问频谱。基于MIMO的认知无线电系统使该波束形成信号处理技术能够动态同时使用无线电频谱。波束形成是一种可以控制无线电信号发射和接收方向的技术。现代无线技术依赖于波束形成技术,以提供更高的数据速率,改善覆盖范围,并用于与其他用户共享频谱。基于MIMO的无线系统要求N个天线系统有N个射频链,硬件复杂性是该系统的主要问题之一。天线子阵形成(ASF)方案是一种优化技术,可以用来减少所需的射频链,从而提高容量。这将大大降低硬件的成本,实现低成本的硬件系统。通常子阵形成和波束形成这两个过程是分开进行的,但本文将子阵形成和波束形成联合进行,这样既提高了二次用户容量,又避免了两个复杂的计算过程。采用天线子阵形成(ASF)方案,利用所有天线单元实现最大信干扰比(SINR)。在天线子阵形成过程中,射频链被分配给子阵单元。
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引用次数: 2
Fog computing — Network based cloud computing 雾计算——基于网络的云计算
Y. Krishnan, Chandan N. Bhagwat, Aparajit P. Utpat
Cloud Computing provides us a means to upload data and use applications over the internet. As the number of devices connecting to the cloud grows, there is undue pressure on the cloud infrastructure. Fog computing or Network Based Computing or Edge Computing allows to move a part of the processing in the cloud to the network devices present along the node to the cloud. Therefore the nodes connected to the cloud have a better response time. This paper proposes a method of moving the computation from the cloud to the network by introducing an android like appstore on the networking devices.
云计算为我们提供了一种通过互联网上传数据和使用应用程序的方法。随着连接到云的设备数量的增长,云基础设施面临着不应有的压力。雾计算或基于网络的计算或边缘计算允许将云中处理的一部分移动到沿节点到云的网络设备上。因此,连接到云的节点具有更好的响应时间。本文提出了一种通过在网络设备上引入类似android的应用商店,将计算从云转移到网络的方法。
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引用次数: 48
A low cost smart irrigation control system 一种低成本智能灌溉控制系统
Chandan Kumar Sahu, Pramitee Behera
This paper focus on a smart irrigation system which is cost effective and a middle class farmer use it in farm field. Today we are living in 21st century where automation is playing important role in human life. Automation allows us to control appliances automatic control. It not only provide comfort but also reduce energy, efficiency and time saving. Today industries are use automation and control machine which is high in cost and not suitable for using in a farm field. So here we also design a smart irrigation technology in low cost which is usable by Indian farmers. The objectives of this paper were to control the water motor automatically and select the direction of the flow of water in pipe with the help of soil moisture sensor. Finally send the information (operation of the motor and direction of water) of the farm field to the mobile message and g-mail account of the user.
本文重点研究了一种经济高效的智能灌溉系统,并为中产阶级农民在农田中使用。今天我们生活在21世纪,自动化在人类生活中扮演着重要的角色。自动化使我们能够控制电器的自动控制。它不仅提供舒适,而且减少能源,效率和节省时间。目前工业上使用的自动化控制设备成本高,不适合在农田中使用。因此,我们也设计了一种低成本的智能灌溉技术,可供印度农民使用。本文的研究目标是利用土壤湿度传感器实现对水电机的自动控制和管道中水流方向的选择。最后将农田的信息(电机的运行情况和水的方向)发送到用户的手机短信和g-mail账户。
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引用次数: 108
An anti-jamming underwater communication transceiver model using uncoordinated direct sequence spread spectrum technique
S. Kalita, P. Sahu
Unlike broadcast communication and other wireless communication, jamming resistant communication is also most crucial for the safety of a signal in underwater. So in this paper an uncoordinated direct sequence spread spectrum technique which can handle an unlimited amount of receivers have been used for anti-jamming multi-channel Underwater Communication (UWC). For performance analysis of the proposed system, a circuit simulation model was made to calculate Bit Error Rate (BER) by considering multipath fading, jamming signal, Doppler spread and Additive White Gaussian Noise (AWGN) etc. and are compared with the analytical results, experimental results and previous works. From the results it is seen that BER vs. JSR shows less BER than that of the previous work and that the values of BER within the SNR range of 5dB-19dB will be 1×10-1~2×10-5 for BPSK which is also found to be less than that of the previous work.
与广播通信和其他无线通信不同,抗干扰通信对水下信号的安全也是至关重要的。因此,本文提出了一种可以处理无限数量接收机的非协调直接序列扩频技术,用于抗干扰多信道水下通信。为了对系统进行性能分析,建立了考虑多径衰落、干扰信号、多普勒扩频和加性高斯白噪声等因素的电路仿真模型,计算了误码率,并与分析结果、实验结果和前人的研究成果进行了比较。从结果可以看出,BPSK在5dB-19dB信噪比范围内的BER值为1×10-1~2×10-5,而BPSK的BER值也小于之前的工作。
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引用次数: 7
Kalman filter based target tracking for track while scan data processing 基于卡尔曼滤波的目标跟踪在跟踪过程中对扫描数据进行处理
K. David Solomon Raj, I. Mohan Krishna
The targets parameter to be measured for tracking are its relative position in range, azimuth angle, elevation angle and velocity. These parameters can be measured by tracking radar systems. Upon keeping the tracking of these measured parameters the tracker predict their future values. Fire control and missile guidance can be assisted through target tracking only. In fact missile guidance cannot be achieved without tracking the target properly. To predict target parameters (future samples) between scans, track while scan radar system sample each target once per scan interval by using sophisticated smoothing and prediction filters among which alpha-beta-gamma (αβγ) and Kalman filters are commonly used. The principle of recursive tracking and prediction filters are proposed in this paper for two maneuvering targets (lazy and aggressive maneuvering), by implementing the second and third order one dimensional fixed gain polynomial filter trackers. Finally the equations for an n-dimensional multi state Kalman filter are implemented and analyzed. In order to evaluate the performance of tracking filters the target considered in this paper is a Novator K100 Indian/Russian air-to-air missile designed to fly at Mach 4. In this paper the main objective of developing these filter tracking algorithmsis to reduce the measurement noise and tracking filter must be capable of tracking maneuvering targets with small residual (tracking errors).
跟踪需要测量的目标参数是目标在距离、方位角、仰角和速度上的相对位置。这些参数可以通过跟踪雷达系统测量。跟踪这些测量参数后,跟踪器预测它们的未来值。火控和导弹制导只能通过目标跟踪辅助。实际上,如果不正确跟踪目标,导弹制导是无法实现的。为了预测扫描之间的目标参数(未来样本),跟踪扫描雷达系统在每个扫描间隔内对每个目标进行一次采样,使用复杂的平滑和预测滤波器,其中常用的是α - β - γ (αβγ)和卡尔曼滤波器。本文通过实现二阶和三阶一维固定增益多项式滤波器跟踪器,提出了两种机动目标(惰性机动和主动机动)的递归跟踪和预测滤波器原理。最后对n维多态卡尔曼滤波器的求解方程进行了实现和分析。为了评估跟踪滤波器的性能,本文考虑的目标是诺瓦托K100印度/俄罗斯空对空导弹,设计飞行速度为4马赫。本文发展这些滤波跟踪算法的主要目的是降低测量噪声,跟踪滤波器必须能够以较小的残余(跟踪误差)跟踪机动目标。
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引用次数: 20
期刊
2015 2nd International Conference on Electronics and Communication Systems (ICECS)
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