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2018 International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET)最新文献

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Ring Oscillator Based Physically Unclonable Function With Arbiter 基于带仲裁器的环形振荡器物理不可克隆函数
R. Bhilare, K. Harini, S. Sridevi
Physically Unclonable Functions (PUF) are hardware blocks implemented for challenge response generation used in many applications including cryptography. Use of hardware block instead of software application helps in improving security matrices PUF can be designed using different types but use of Configurable Ring Oscillator (CRO) block provides many advantages including reduction in area and improved performance matrices. Use of arbiter provides a simple design approach and less area compared to comparators used in the ring oscillator block. A configurable ring oscillator block with arbiter has application in key generation block of many crypto graphical units is proposed in this paper. Monte Carlo simulation used to study the effect of process variation in a design. In this paper Monte Carlo simulation is carried out on CRO block to obtain the results.
物理不可克隆函数(PUF)是为包括密码学在内的许多应用程序中使用的挑战响应生成而实现的硬件块。使用硬件块代替软件应用程序有助于提高安全性矩阵,PUF可以使用不同类型的设计,但使用可配置环振荡器(CRO)块提供许多优点,包括减少面积和提高性能矩阵。与环形振荡器块中使用的比较器相比,仲裁器的使用提供了一种简单的设计方法和更少的面积。提出了一种具有仲裁器的可配置环振块,可应用于多种加密单元的密钥生成块。蒙特卡罗模拟用于研究设计过程变化的影响。本文对CRO模块进行了蒙特卡罗仿真,得到了结果。
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引用次数: 0
Artificial Neural Network Based Approach for Spectrum Sensing in Cognitive Radio 基于人工神经网络的认知无线电频谱感知方法
R. Yelalwar, Y. Ravinder
In the recent wireless scenario, Cognitive Radio (CR) is a critical technique that supports efficient utilization of the radio spectrum. Spectrum sensing is the main task of CR that plays a main role in deciding the spectrum availability. In this paper, Artificial Neural Network (ANN) based spectrum sensing (SS) in Cognitive Radio is proposed. Various spectral features of received signals are measured to create a database to train the ANN. The trained ANN is then used to classify the signal and noise samples. Simulation results obtained show that the proposed technique detects the signal under considerably poor Signal to Noise Ratio (SNR) scenario. ANN based spectrum sensing exhibits reliable performance compared to conventional energy detection based spectrum sensing.
在最近的无线场景中,认知无线电(CR)是支持有效利用无线电频谱的关键技术。频谱感知是无线通信的主要任务,在决定频谱可用性方面起着重要作用。提出了一种基于人工神经网络的认知无线电频谱感知方法。测量接收信号的各种频谱特征以创建数据库来训练人工神经网络。然后使用训练好的人工神经网络对信号和噪声样本进行分类。仿真结果表明,该方法可以在较差信噪比的情况下检测到信号。与传统的基于能量检测的频谱感知相比,基于神经网络的频谱感知表现出可靠的性能。
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引用次数: 6
WiMAX Network Aided SCIS for Baghdad City: Design and Analysis Using ICS Telecom 巴格达市WiMAX网络辅助SCIS:利用ICS电信的设计与分析
H. M. T. Al-Hilfi, B. A. Salih, I. Marghescu
In this paper, we design and evaluate WiMAX network based on SCIS for application in Baghdad city. To meet users’ demands and QoS, we address design challenges like power control, frequency assignment, antenna height and tilt selection. In our design, three stages of network planning and dimensioning via coverage, interference mitigation, and capacity dimensioning are proposed. ICS Telecom software is used to evaluate our design. Results have shown that our design yields 80% coverage of the Baghdad City with 55% decrease in interfered area and the network covering 1000 subscribers of which 93.4% is based on their QoS requirements.
本文设计并评估了基于SCIS的WiMAX网络在巴格达市的应用。为了满足用户的需求和服务质量,我们解决了功率控制、频率分配、天线高度和倾斜选择等设计挑战。在我们的设计中,提出了三个阶段的网络规划和量纲,包括覆盖、干扰缓解和容量量纲。采用ICS电信软件对设计进行评价。结果表明,我们的设计使巴格达市的覆盖率达到80%,干扰面积减少55%,网络覆盖1000个用户,其中93.4%是基于用户的QoS要求。
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引用次数: 1
MR Brain Tumor Classification and Segmentation Via Wavelets 基于小波的MR脑肿瘤分类与分割
T. Devi, G. Ramani, S. Arockiaraj
Timely, accurate detection of magnetic resonance (MR) images of brain is most important in the medical analysis. Many methods have already explained about the tumor classification in the literature. This paper explains the method of classifying MR brain images into normal or abnormal (affected by tumor), abnormality segments present in the image. This paper proposes DWT-discrete wavelet transform in first step to extract the image features from the given input image. To reduce the dimensions of the feature image principle component Analysis (PCA) is employed. Reduced extracted feature image is given to kernel support vector machine (KSVM) for processing. The data set has 90 brain MR images (both normal and abnormal) with seven common diseases. These images are used in KSVM process. Gaussian Radial Basis (GRB) kernel is used for the classification method proposed and yields maximum accuracy of 98% compared to linear kernel (LIN). From the analysis, compared with the existing methods GRB kernel method was effective. If this classification finds abnormal MR image with tumor then the corresponding part is separated and segmented by thresholding technique.
及时、准确地检测脑磁共振图像在医学分析中是至关重要的。文献中已有多种方法对肿瘤的分型进行了解释。本文阐述了将脑磁共振图像划分为正常或异常(受肿瘤影响)、图像中存在的异常片段的方法。本文首先提出dwt -离散小波变换,从给定的输入图像中提取图像特征。为了降低特征图像的维数,采用了主成分分析(PCA)。将提取的约简特征图像交给核支持向量机进行处理。该数据集有90张脑部磁共振图像(包括正常和异常),包括7种常见疾病。这些图像用于KSVM处理。该方法采用高斯径向基核(GRB)进行分类,与线性核(LIN)相比,准确率高达98%。从分析来看,与现有方法相比,GRB核方法是有效的。如果发现异常MR图像中存在肿瘤,则采用阈值分割技术对相应部分进行分离和分割。
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引用次数: 13
IR and Visible Video Fusion for Surveillance 用于监控的红外和可见光视频融合
V. Shrinidhi, Pratyush Yadav, N. Venkateswaran
Infrared (IR) imagery offers a promising alternative to visible imagery and is extensively used in military, surveillance and other applications. IR, however, has limitations of not detecting thermal variations after heavy rains when the temperature of the surrounding becomes uniform with the object of interest. Due to this fact, the relevant information from visible and IR videos are combined into one fused video. This paper aims to develop an efficient algorithm in order to fuse videos captured using infrared and visible cameras using different types of transforms and evaluate its performance measures. Tracking of single or multiple objects/people from the fused result has been further undertaken specifically for night vision using Background Subtraction[BS] and Kalman filtering.
红外(IR)图像为可见图像提供了一个有前途的替代方案,并广泛用于军事,监视和其他应用。然而,在大雨之后,当周围的温度与感兴趣的物体变得均匀时,红外也有其局限性,无法探测到热变化。因此,可见光和红外视频的相关信息被合并成一个融合视频。本文旨在开发一种有效的算法,以便使用不同类型的变换融合使用红外和可见光摄像机捕获的视频,并评估其性能指标。利用背景减法[BS]和卡尔曼滤波,进一步从融合结果中跟踪单个或多个物体/人,专门用于夜视。
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引用次数: 6
Robust Fabrication of Share to Assure Error Free Dissemination of Secret Data (RFSAEFDSD) 确保秘密数据无错误传播的鲁棒共享构建(RFSAEFDSD)
A. Goswami, R. Mukherjee, N. Ghoshal
In wireless domain, digital communication requires effective data security. The proposed algorithm promotes effective security by incorporating visual cryptography, sharing of secret data through robust fabrication, error identification & correction using the binary repetition code of length 3 and authentication of the secret data through Hash value checking. The effective utilization of two distinct color cover images and the three planes simultaneously justifies robustness in hiding. In addition, the use of mid frequency region of DCT spectrum and pseudorandom casting locations support resistance to some other image processing attacks apart from JPEG compression. The volume of payload is increased considerably by fabricating four bits at a time in a single block. The data correctness is well supported by reducing the computational overhead and introducing error bit correction. At the receiving end, the authorization of a document and its owner is ratified by a Hash function. The experimentation of the algorithm and subsequent analysis of the results depict the credibility of the algorithm in the domain of data security.
在无线领域,数字通信需要有效的数据安全保护。所提出的算法通过结合可视化加密、通过鲁棒制作共享秘密数据、使用长度为3的二进制重复码识别和纠正错误以及通过哈希值检查对秘密数据进行认证来提高有效的安全性。同时有效地利用了两种不同颜色的覆盖图像和三个平面,证明了隐藏的鲁棒性。此外,使用DCT频谱的中频区域和伪随机投射位置支持抵抗除JPEG压缩之外的一些其他图像处理攻击。通过在单个块中一次制造四个比特,有效载荷的体积大大增加。通过减少计算开销和引入错误位校正,可以很好地支持数据的正确性。在接收端,文档及其所有者的授权由哈希函数批准。该算法的实验和后续结果分析表明了该算法在数据安全领域的可靠性。
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引用次数: 0
Dual-band Bandpass Filter Using Complementary Split Ring Resonators for X-Band Applications 双带带通滤波器使用互补分环谐振器用于x波段应用
R. R. Sushmeetha, S. Natarajamani
This paper is focused on Complementary Split Ring Resonator (CSRR) to design a dual band bandpass filter (BPF) for X-Band frequencies using metamaterial concept. To achieve the functionalities of metamaterials, rectangular shaped complementary split ring resonators are etched in the ground plane along with λ /4 microstrip lines on the top. The inner and the outer rings are joined at the center through a gap. The length of the inner ring and the outer ring are calculated to make the BPF operating at 8.2 GHz and 9 GHz in X-Band. The width of the inter-connecting gap is changed to control the passband edges. An equivalent circuit model is proposed for the designed dual-band BPF to understand the working of the basic cell along with a microstrip line. By varying the length and width of the CSRR and changing the microstrip line dimensions two resonances are can be adjusted and finally fixed at our desired resonating frequencies. The results of EM simulation and the circuit simulation are compared to confirm the validity of the proposed design.
本文主要研究利用互补裂环谐振器(CSRR)的超材料概念设计x波段双频带通滤波器(BPF)。为了实现超材料的功能,在地平面上蚀刻矩形互补分裂环谐振器,并在其顶部蚀刻λ /4微带线。内环和外环通过间隙在中心连接。计算了内环和外环的长度,使BPF工作在8.2 GHz和9 GHz的x波段。通过改变互连间隙的宽度来控制通带边缘。提出了双频BPF的等效电路模型,以了解基本单元与微带线的工作情况。通过改变CSRR的长度和宽度以及改变微带线的尺寸,可以调节两个谐振并最终固定在我们期望的谐振频率上。仿真结果与电路仿真结果进行了比较,验证了所提设计的有效性。
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引用次数: 5
Performance Evaluation Based on Placement Planning of Logic Blocks in FPGA Design 基于FPGA设计中逻辑块放置规划的性能评估
Jasmine Joseph, Anu Chalil
The Field Programmable Gate Arrays (FPGAs) show reasonable improvements in the speed and power constraints which makes a platform for the digital circuits implementations. For designing an FPGA, synthesis tools are used which performs various minimizations and optimizations techniques. The synthesis tools use the RTL representation of the design with a set of timing constraints and generate the corresponding gate-level netlists. Today, the most advanced Xilinx Vivado Design Suite is used for the FPGA design as a synthesis tool. In some cases, the Xilinx Vivado can’t meet the designer’s required delay and power constraints. So the main aim of this project is to evaluate the improvements in performance by planning the placements of the logic blocks to meet the required speed and power constraints of the designer in Xilinx Vivado software.
现场可编程门阵列(fpga)在速度和功率限制方面表现出合理的改进,为数字电路的实现提供了平台。为了设计一个FPGA,使用合成工具来执行各种最小化和优化技术。综合工具使用带有一组时序约束的设计的RTL表示,并生成相应的门级网络列表。如今,最先进的Xilinx Vivado Design Suite被用作FPGA设计的综合工具。在某些情况下,Xilinx Vivado不能满足设计者所要求的延迟和功耗限制。因此,本项目的主要目的是通过规划逻辑块的位置来评估性能的改进,以满足Xilinx Vivado软件中设计人员所需的速度和功率限制。
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引用次数: 0
Prominent Modulation Techniques Analysis to Dim LEDs Installed Indoors Under Visible Light Communication 可见光通信条件下室内led调光技术分析
A. Vijayalakshmi, N. Sudha
There is a dare necessitate of latest and reliable communication medium to meet out the escalating wireless data traffic and the increasing demand among users in their day to day life. The medium of communiqué using visible light spectrum in VLC can overcome the unease circumstances prevailing on the present RF spectrum. The LEDs utilized in VLC provides productiveness, comfortability and energy saving. The control in lighting can be accomplished through dimming in the LEDs installed; which is space and application specific, and helps to achieve energy conservation in the lighting sector. The survey is to devise efficient modulation technique to dim LEDs installed indoors and to uphold a reliable, efficient and successful VLC link even at low intensities.
为了满足日益增长的无线数据流量和用户在日常生活中日益增长的需求,迫切需要最新可靠的通信介质。在VLC中使用可见光光谱的通讯介质可以克服目前射频频谱上普遍存在的不安情况。在VLC中使用的led具有生产力,舒适性和节能性。照明的控制可以通过安装的led调光来完成;这是特定的空间和应用,并有助于实现节能在照明领域。该调查旨在设计有效的调制技术来调暗室内安装的led,并在低强度下维持可靠,高效和成功的VLC链路。
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引用次数: 0
Music Perception Analysis on Hearing Impaired Listeners 听障听众的音乐感知分析
Alka John, R. Rajan, Karun Sajeev
A hearing aid designed for speech is not optimally set for music. Hearing impaired persons suffer from many problems such as difficulty in understanding melodies, distinguishing timbre, meter, harmony and other musical features. In the proposed experiment, a music perception test with components namely, meter, timbre, texture, fluctuation pattern and melody perception in noise is used for the evaluation. The test is performed on normal hearing and hearing-impaired listeners. The test is conducted on 20 respondents. A statistical analysis is performed using Nalysis Of VAriance (ANOVA) test. The results show that hearing-impaired participants (HI) have lower perception in understanding meter, musical texture and melody in noise than normal hearing participants (NH). It is observed that the perception variation of timbre and modulation is less between both the categories as compared to other attributes.
为语言设计的助听器并不适合音乐。听力受损的人在理解旋律、辨别音色、节拍、和声和其他音乐特征方面存在困难。在本实验中,乐感测试的组成部分是:音阶、音色、织体、波动模式和噪声中的旋律感知。该测试在听力正常和听力受损的听众中进行。该测试对20名受访者进行了调查。采用方差分析(ANOVA)检验进行统计分析。结果表明,听力受损的被试对噪声中的韵律、乐理和旋律的理解能力低于正常被试。可以观察到,与其他属性相比,两个类别之间的音色和调制的感知变化较小。
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引用次数: 0
期刊
2018 International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET)
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