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In-Sequence Zeros-Ones Patterns Exploiting Approach for Spatial Modulation Performance Enhancement 提高空间调制性能的序中0 - 1模式利用方法
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62751
M. Arafa, Mohamed Elwekeil, M. Dessouky
This paper presents a proposed approach for enhancing both the spectral efficiency of spatial modulation and symbol error rate. The main idea is to exploiting repeated long zeros and ones sequences in the transmitted data, and mapping them into the signal constellation of Three Dimension (3-D) spatial constellation of spatial modulation. The obtained results indicate that the symbol error rate (SER) performance of the proposed algorithm is better as compared to traditional spatial modulation (SM), at a certain number of modulated-symbol selecting bits. The performance enhancement is affirmed by Monte Carlo simulations that show a significant improvement in SER in favor of the proposed approach compared to traditional SM. In addition, the proposed approach provides more improvement of SER performance, especially, when the number of receiving antennas is increased. Furthermore, it provides an improvement of spectral efficiency as compared to traditional spatial modulation.
本文提出了一种提高空间调制频谱效率和码元误码率的方法。其主要思想是利用传输数据中重复的长0和1序列,并将其映射成空间调制的三维空间星座的信号星座。结果表明,在一定的调制选码比特数下,该算法的符号误码率(SER)性能优于传统的空间调制(SM)。蒙特卡罗模拟证实了性能的增强,与传统的SM相比,该方法在SER方面有了显著的改进。此外,当接收天线的数量增加时,该方法可以提供更多的SER性能改进。此外,与传统的空间调制相比,它提供了频谱效率的提高。
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引用次数: 0
Iris Template Localization over Internet of Things (IoT) 基于物联网(IoT)的虹膜模板定位
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62662
Ramadan Gad, A. El-Sayed, N. El-Fishawy, M. Zorkany
Internet of Things (IoT) is growing vastly and survive technology.So; it needs authentication solutions (as iris recognition) to bringsafety, and convenience in data and network sharing in the internetof things era. Iris segmentation is most critical stage in the irisrecognition system. Some challenges to localize iris such asocclusion by eyelids, eyelashes, and corneal or specular reflection.This paper proposes, a modified algorithm based on maskingtechnique; to localize iris. It solves the limitation of the iris data lossand inconsistencies factors, for capturing conditions and differentresolution images. This method gives satisfactory results in factorsof accuracy and execution time to be used over IoT. Thesegmentation success rate is more than 99.545(%), and executiontime in worst case 0.758 (sec).The obtained results improve theefficiency of the proposed iris recognition method and improve IoTsecurity and authentication.
物联网(IoT)正在迅速发展,并成为一种生存技术。在物联网时代,需要认证解决方案(如虹膜识别)来带来数据和网络共享的安全性和便利性。虹膜分割是虹膜识别系统的关键环节。虹膜定位的一些挑战,如眼睑、睫毛、角膜或镜面反射遮挡。本文提出了一种基于掩码技术的改进算法;定位虹膜。它解决了虹膜数据丢失不一致因素的限制,适用于捕获条件和不同分辨率的图像。该方法在精度和执行时间方面都取得了令人满意的结果,可用于物联网。这些分割成功率超过99.545(%),在最坏的情况下执行时间为0.758(秒)。所得结果提高了虹膜识别方法的效率,提高了物联网安全性和认证能力。
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引用次数: 0
An In-depth Survey of Viisiiblle Liight Communiicatiion Modullatiing and Codiing schemes for Diimmiing/Flliicker Avoiidance Technollogiies 基于消光/避光技术的可见光通信调制和编码方案的深入研究
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62757
C. Ghandour, A. Zekry, Nazmi A. Mohammed, S. El-Rabaie
Visible light communication (VLC) is considered as a promisingtechnique for the wireless technology of the 21st century. UtilizingLight Emitting Diode (LED) technology adds a wide area ofapplications for VLC. Most important one is that VLC can provideillumination/communication jointly. To achieve efficientcommercial VLC communication/illumination system one needsto profit from dimming schemes/flicker. Availability of suitablesystem designs and enhancing system's power requirements arekey advantages for using dimming schemes. Effective dimmingschemes/flicker are mainly achieved through several VLC basedon modulation techniques. In last few years many kinds ofliterature discussed independently wide range of modulationschemes to address the effectively previous issue. However, fewsurveys for these works are presented in the field. This paperprovides an in-depth survey of VLC based dimming scheme.Therefore, the kinds of modulation and coding techniques arecollected and categorized of more than 60 papers extending frompioneering papers to the state of the art in the field. In addition,research and current issues are discussed especially in whichtrends in VLC based dimming/flicker.
可见光通信(VLC)被认为是21世纪无线技术的一个有前途的技术。利用发光二极管(LED)技术为VLC增加了广泛的应用领域。最重要的是VLC可以同时提供照明和通信。为了实现高效的商用VLC通信/照明系统,需要从调光方案/闪烁中获利。适当的系统设计的可用性和提高系统的功率要求是使用调光方案的关键优势。有效的调光方案/闪烁主要通过几种基于VLC的调制技术来实现。在过去的几年里,许多文献独立讨论了各种各样的调制方案来有效地解决以前的问题。然而,对这些工作的调查很少在该领域提出。本文对基于VLC的调光方案进行了深入的研究。因此,调制和编码技术的种类被收集和分类了60多篇论文,从开创性的论文延伸到该领域的最新技术。此外,还讨论了基于VLC的调光/闪烁技术的研究现状和发展趋势。
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引用次数: 0
Proposed Energy Effiiciient Mulltii-Layer MAC Protocoll for Massiive MTC over LTE Wiirelless Network LTE无线网络中大规模MTC的高效节能多层MAC协议
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62727
Ahmed A. Naguib, W. Saad, M. Shokair
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引用次数: 0
Impact of Small Files on Hadoop Performance: Literature Survey and Open Points 小文件对Hadoop性能的影响:文献综述和开放点
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62728
T. El-Sayed, M. Badawy, A. El-Sayed
Hadoop is an open-source framework written by java and used for bigdata processing. It consists of two main components: HadoopDistributed File System (HDFS) and MapReduce. HDFS is used tostore data while MapReduce is used to distribute and process anapplication tasks in a distributed processing form. Recently, severalresearchers employ Hadoop for processing big data. The resultsindicate that Hadoop performs well with Large Files (files larger thanData Node block size). Nevertheless, Hadoop performance decreaseswith small files that are less than its block size. This is because, smallfiles consume the memory of both the DataNode and the NameNode,and increases the execution time of the applications (i.e. decreasesMapReduce performance). In this paper, the problem of the small filesin Hadoop is defined and the existing approaches to solve this problemare classified and discussed. In addition, some open points that mustbe considered when thinking of a better approach to improve theHadoop performance when processing the small files.
Hadoop是一个由java编写的开源框架,用于大数据处理。它由两个主要组件组成:HDFS (HadoopDistributed File System)和MapReduce。HDFS用于存储数据,MapReduce用于以分布式处理形式分发和处理应用程序任务。最近,一些研究人员使用Hadoop来处理大数据。结果表明,Hadoop在处理大文件(大于数据节点块大小的文件)时表现良好。然而,Hadoop的性能会随着小于其块大小的小文件而下降。这是因为,smallfiles消耗DataNode和NameNode的内存,并增加应用程序的执行时间(即降低mapreduce性能)。本文对Hadoop中的小文件问题进行了定义,并对现有的解决该问题的方法进行了分类和讨论。此外,在考虑更好的方法来提高hadoop处理小文件时的性能时,必须考虑一些开放点。
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引用次数: 4
A Proposed Meta-Heuristic Approach for Cloudlets Scheduling in Cloud Computing Environment 云计算环境下的一种元启发式调度方法
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62747
Aida A. Nasr, Nirmeen A. El-Bahnasawy, G. Attiya, A. El-Sayed
This paper presents a new hybrid approach, called ACOSA, for cloudlets scheduling to enhance the scheduler behavior in Cloud computing (CC) environment and to overcome the results oscillation problem of the existing meta-heuristic scheduling algorithms. The proposed approach combines both the Ant Colony Optimization (ACO) and Simulated Annealing (SA) algorithm to improve both quality of solutions and time complexity of the scheduling algorithm. The proposed approach is evaluated by using the well-known CloudSim, and the results are compared with the ant colony and simulated annealing separately in terms of schedule length, load balancing, and time complexity. It decreases the schedule length by 29.75% with SA and 12.25% with ACO. The ACOSA provides higher load balancing degree. It improves the balancing degree ratio by 36.36% than SA and 12.13% than ACO algorithms.
本文提出了一种新的混合调度方法——ACOSA,以增强云计算环境下调度程序的行为,并克服了现有元启发式调度算法的结果振荡问题。该方法结合了蚁群优化算法和模拟退火算法,提高了调度算法的求解质量和时间复杂度。利用CloudSim对所提出的方法进行了评估,并在调度长度、负载均衡和时间复杂度方面分别与蚁群算法和模拟退火算法进行了比较。SA和ACO分别减少29.75%和12.25%的调度时间。ACOSA提供了更高的负载均衡程度。该算法比SA算法提高36.36%,比ACO算法提高12.13%。
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引用次数: 0
Applying the Linear Spectral Estimation Techniques for both DNA Sequence Analysis and Exon Region Prediction 线性谱估计技术在DNA序列分析和外显子区域预测中的应用
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62752
A. M. Dessouky, A. Eltholth, T. Taha, F. El-Samie
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引用次数: 0
SYN Flood Attack Detection Usiing AR Model 基于AR模型的SYN Flood攻击检测
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62725
Rania A. Ghazy, El-Sayed M. El-Rabaie, M. Dessouky, N. El-Fishawy, F. E. El-Samie
Due to the sophisticated characteristics of auto-regressive (AR) modeling approach, it finds applications in most anomaly detection processes. This paper extends the concept of AR modeling to create models for the estimated auto-correlation between data and control planes packet counts of the network traffic. These models are fed with the anomaly traffic containing SYN flood attack. The estimated residuals in these scenarios are used as indicators for the attacks. Simulation results revealed the success of attack detection using the proposed approach.
由于自回归(AR)建模方法的复杂特性,它在大多数异常检测过程中都有应用。本文扩展了AR建模的概念,为网络流量的数据和控制平面数据包计数之间的估计自相关性创建了模型。这些模型被注入了包含SYN flood攻击的异常流量。这些场景中的估计残差用作攻击的指标。仿真结果表明,该方法能够成功地进行攻击检测。
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引用次数: 0
All Optical Switching Logic Gates Based on Nonlinear Semiconductor Optical Amplifiers Effects 基于非线性半导体光放大器效应的全光开关逻辑门
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62754
A. Rashed, A. Mohamed, Mohamed S. F. Tabbour, N. Saad
This paper studies the problem of data access at the receiver withlarge bit error rate and low quality factor. Due to this issue theinformation got inaccurately at the receiver side, the data shouldhave high quality factor and low bit error rate to be simple ofidentification at the receiver when using the gates. The nonlinearproperties of the semiconductor optical amplifier (SOA) are utilizedto accomplish the Boolean variable based math work, in whichAND, NAND, and OR gates potentially used to endorse theBoolean function. Through blend this gates together any Booleanfunction can be accomplished and utilized to perform optical signalprocessing. The quality factor and BER are measured by utilizingthe eye diagram analyzer, the state of the output bit and alsoshaped by the oscilloscope visualizer in Optiwave simulationprogram. These models can be used for wavelength converter,header recognition, parity checking, binary addition, packet-headermodification, encoding and encryption with pattern matching, anddata encryption with high speed and high quality factor.
本文研究了误码率大、质量因数低的接收机的数据访问问题。由于这个问题,信息在接收端得到的不准确,数据应该具有高质量因子和低误码率,以便在使用门时在接收端简单识别。利用半导体光放大器(SOA)的非线性特性来完成基于布尔变量的数学工作,其中hand, NAND和OR门可能用于支持布尔函数。通过将这些门混合在一起,可以实现任何布尔函数,并利用它们进行光信号处理。利用眼图分析仪测量质量因子和误码率,利用Optiwave仿真程序中的示波器可视化器对输出位的状态进行测量。这些模型可用于波长转换、报头识别、奇偶校验、二进制相加、报文报头修改、模式匹配编码和加密以及高速高品质因数的数据加密。
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引用次数: 0
Resolution and Quality Enhancement of Images Using Contrast Limit Adaptive Histogram Equalization 使用对比度限制自适应直方图均衡化的图像分辨率和质量增强
Pub Date : 2019-01-01 DOI: 10.21608/mjeer.2019.62722
Sahar Aboshosha, O. Zahran, M. El-Kordy, M. Dessouky, F. E. El-Samie
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引用次数: 1
期刊
Menoufia Journal of Electronic Engineering Research
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