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2018 5th International Conference on Signal Processing and Integrated Networks (SPIN)最新文献

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Cognitive decision engine design for CR based IoTs using Differential Evolution and Bat Algorithm 基于差分进化和Bat算法的物联网认知决策引擎设计
Avneet Kaur, Ashmeet Kaur, Surbhi Sharma
Current research efforts in communication technology are shifting towards new paradigm namely, Internet of Things (IoTs). There is a strong need to tackle the challenge of introduction of massive data into network by IoT supported applications. For this, Cognitive Radio networks (CRNs) are seen as a potential solution. Enabling IoT objects with Cognitive radio features has led to new research dimension of CR based IoTs. Real time tuning of transmission parameters by Cognitive decision engine as per user needs and dynamic environment conditions is one of the important tasks. Determination of optimal value of transmission parameters becomes even more challenging for a multicarrier system because of high dimensionality as there are large number of decision variables to be optimized. Nature inspired metaheuristic optimization techniques offer an efficient and simple solution to the aforementioned problem. In this paper, comparative performance analysis of Differential evolution (DE) and Bat algorithm has been done for the parameter tuning problem. The results demonstrate that the parameter adaptation by DE based engine outperforms the Bat based implementation in terms of fitness score for the five different transmission modes supported by CR based IoTs.
目前通信技术的研究工作正在转向新的范式,即物联网(iot)。通过物联网支持的应用程序,我们迫切需要解决将大量数据引入网络的挑战。为此,认知无线电网络(crn)被视为一种潜在的解决方案。使物联网对象具有认知无线电特征,为基于CR的物联网提供了新的研究维度。认知决策引擎根据用户需求和动态环境条件实时调整传输参数是其中的重要任务之一。由于多载波系统具有高维数,需要优化的决策变量众多,使得传输参数的最优值的确定更加具有挑战性。自然启发的元启发式优化技术为上述问题提供了一种有效而简单的解决方案。本文对差分进化算法(DE)和Bat算法在参数调优问题上的性能进行了比较分析。结果表明,对于基于CR的物联网支持的五种不同传输模式,基于DE的引擎的参数自适应在适应度评分方面优于基于Bat的实现。
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引用次数: 2
Genetic Algorithm based Approach to Determine Optimal Collection Points for Big Data Gathering in Distributed Sensor Networks 基于遗传算法的分布式传感器网络大数据最优采集点确定方法
Alekha Kumar Mishra, Suma Shree Thota, Simrat Bains, M. Das, Shruti Singhai, Siddhant Choudhary, A. Tripathy
In recent of data, distributed sensor networks have become one of the primary source of generating big data. Therefore energy- efficient data gathering in densely distributed sensor networks is a demanding area of research. Among the various techniques of data acquisition, the mobile sink approach is highly suitable in densely distributed sensor networks. However, optimizing the trajectory of mobile sink is a crucial challenge to be addressed by researcher. The clustering-based Expectation Minimization technique proposed by Takaish et al. is an efficient approach to minimize the energy consumption of sensors while maintaining the node coverage. However, clustering of nodes may not ensure an optimal trajectory of mobile sink node. In this paper, we use genetic algorithm based approach to optimally select the data gathering points that minimize the distance of mobile sink trajectory to improve data collection time. The experimental results depict that the proposed technique is able to achieve optimal trajectory for mobile sink compared to Expectation Minimization technique.
在最近的数据时代,分布式传感器网络已经成为产生大数据的主要来源之一。因此,如何在密集分布的传感器网络中高效采集数据是一个亟待研究的领域。在各种数据采集技术中,移动汇聚方法非常适合于密集分布的传感器网络。然而,移动汇的轨迹优化是研究人员面临的一个重要挑战。Takaish等人提出的基于聚类的期望最小化技术是一种在保持节点覆盖的情况下最小化传感器能量消耗的有效方法。然而,节点聚类不能保证移动汇聚节点的最优轨迹。在本文中,我们使用基于遗传算法的方法来优化选择数据收集点,使移动sink轨迹的距离最小,以提高数据收集时间。实验结果表明,与期望最小化技术相比,该技术能够实现移动汇的最优轨迹。
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引用次数: 1
A Novel Method for Direction and Deformation Independent Iris Localization 一种方向与变形无关的虹膜定位新方法
Jaya Gautam, A. Bhateja
Iris Localization is the most challenging part of any Iris Recognition System. A lot of work has been done in efficient localization of iris but by taking the assumption that the person is looking straight into the Camera used for image capturing. To make this idea of Biometric System more robust, this paper introduces a new idea of polynomial curve fitting along with singleton expansion to accurately and efficiently localize the iris in any direction and distance from the camera. Also, a highly accurate pupil contour localization method is proposed which can be used in diagnosis of several eye related disorders.
虹膜定位是虹膜识别系统中最具挑战性的部分。在虹膜的有效定位方面已经做了很多工作,但这些工作都是基于一个假设,即人正直视用于图像捕获的相机。为了使生物识别系统的思想更具鲁棒性,本文引入了多项式曲线拟合和单点展开的新思想,以准确有效地定位虹膜在任何方向和距离相机。同时,提出了一种高精度的瞳孔轮廓定位方法,可用于多种眼相关疾病的诊断。
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引用次数: 0
Multi-layered Cloud and Fog based Secure Integrated Transmission and Storage Framework for IoT based Applications 基于物联网应用的多层云雾安全集成传输和存储框架
B. Gupta, Megha Quamara
With Internet of Things (IoT) based subject-oriented and mobile applications gaining more importance, management of services, resources and data in a secure manner is becoming crucial, and requires efficient and sophisticated infrastructure and mechanisms. In this paper, we propose a multi-layered information transmission and storage framework for smart applications in IoT environment. The framework utilizes the concept of mixed Cloud to enhance the security of data to be stored. At the same time, Fog nodes are used to bridge the gap of latency in real time applications. Moreover, we present the security analysis of the proposed model, followed by the conclusion.
随着基于物联网(IoT)的主题导向和移动应用变得越来越重要,以安全的方式管理服务、资源和数据变得至关重要,这需要高效、复杂的基础设施和机制。本文提出了一种面向物联网环境下智能应用的多层次信息传输与存储框架。该框架利用混合云的概念来增强存储数据的安全性。同时,雾节点被用来弥补实时应用中的延迟差距。此外,我们还对所提出的模型进行了安全性分析,并给出了结论。
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引用次数: 3
Voltage regulation of DC-DC Boost converter using Modified IMC controller 基于改进IMC控制器的DC-DC升压变换器电压调节
K. S. Kumar, Sudeep Sharma, P. Padhy
In this work, voltage regulation of the DC-DC Boost converter has been discussed. It is observed that boost converter shows non-minimum phase behavior when it is operated in continuous conduction mode of operation (CCM). Therefore, the proper voltage regulation in CCM mode has been done using modified IMC controller and then compared with control algorithms like PID control technique, IMC controller. To study the performance of these control methods, these are implemented in Matlab/ Simulink environment. The simulation results witness that the modified IMC controller is giving the better output voltage regulation compared with the conventional PID controller and IMC controller.
本文讨论了直流-直流升压变换器的电压调节问题。在连续导通工作模式下,升压变换器表现出非最小相位行为。因此,采用改进的IMC控制器对CCM模式下的电压进行了适当的调节,并与PID控制技术、IMC控制器等控制算法进行了比较。为了研究这些控制方法的性能,在Matlab/ Simulink环境下实现了这些控制方法。仿真结果表明,与传统PID控制器和IMC控制器相比,改进后的IMC控制器具有更好的输出稳压性能。
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引用次数: 4
Hemorrhage segmentation by fuzzy c-mean with Modified Level Set on CT imaging 基于改进水平集的模糊c均值分割出血CT图像
Pankaj Singh, Vandana Khanna, Meenu Kamal
Intracranial hemorrhage is the primary cause of death for patients in early age. Lives of these patients depend on proper or accurate detection of Intracranial Hemorrhage (ICH). This paper presents a hybrid method of fuzzy c mean (FCM) clustering and modified version of distance regularize level set evolution (MDRLSE). Membership values and cluster center are used in FCM clustering for dividing hemorrhagic images into different clusters. One cluster is selected from the FCM clustered images which is used for initialization of MDRLSE. Level set function used in MDRLSE does not require re-initialization process. So convergence speed of active contour propagation becomes faster. Numbers of iterations are reduced in level set method because large time step is used by the MDRLSE method. Proposed hybrid method is evaluated on CT mages of 20 patients suffering from ICH. Result of proposed method provides highest accuracy as compared with FCM method and thresholding method.
颅内出血是早期患者死亡的主要原因。这些患者的生命取决于颅内出血(ICH)的正确或准确的检测。提出了一种模糊均值聚类与改进的距离正则化水平集进化(MDRLSE)的混合方法。在FCM聚类中,利用隶属度值和聚类中心将出血图像划分为不同的聚类。从FCM聚类图像中选择一个聚类用于初始化MDRLSE。MDRLSE中使用的Level set功能不需要重新初始化过程。从而使主动轮廓传播的收敛速度加快。由于MDRLSE方法使用了较大的时间步长,因此减少了水平集方法的迭代次数。本文对20例脑出血患者的CT图像进行了评价。结果表明,与FCM法和阈值法相比,该方法具有较高的精度。
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引用次数: 10
SEEN: Stable Energy Efficient Network for Wireless Sensor Network 用于无线传感器网络的稳定节能网络
R. Priyadarshi, Lucky Singh, Anurag Singh, Ankush Thakur
From past few decade, growing attentiveness in arena of Wireless Sensor Networks. A foremost concern of sensor network is improvement of energy effectual routing protocols. Clustering is an effective approach to enhance energy effectiveness. Generally, dissimilar protocols assume 2 stage of node’s energy level. In certainty, dissimilar network comprise bulky variety of energy stages. By evaluating communiqué energy ingestion of the clusters and bulky variety of energy stages in dissimilar network, we suggest SEEN (Stable Energy Effectual Network) Protocol for dissimilar network. It considers sensor network comprising three energy stages of sensor nodes. Selection of Cluster Head in proposed protocol is done by residual energy level of nodes as well as distance parameter. Simulation outcomes display that proposed algorithm carries out better performances compared to various existing routing protocol in dissimilar sensor network in aspect of lifetime as well as stability of system.
在过去的几十年里,无线传感器网络领域受到越来越多的关注。改进能量有效路由协议是传感器网络的一个重要问题。聚类是提高能源效率的有效途径。一般来说,不同的协议假定节点的能级为2级。当然,不同的网络包含大量不同的能量阶段。通过对不同网络中集群的共同能量摄入和能量阶段的巨大变化进行评估,我们提出了不同网络的稳定能量有效网络(see)协议。它考虑由传感器节点的三个能量阶段组成的传感器网络。该协议通过节点的剩余能级和距离参数来选择簇头。仿真结果表明,在不同类型的传感器网络中,与现有的各种路由协议相比,该算法在生存期和系统稳定性方面具有更好的性能。
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引用次数: 24
Design of 64 QAM Transceiver Model and its Performance Analysis for FSO Communication FSO通信中64 QAM收发器模型设计及性能分析
S. Sarkar, V. Janyani, G. Singh, Tawfik Ismail, H. Selmy
In this paper we have proposed a transceiver model which utilizes 64 QAM type of modulation scheme for free space optical communication, the unique feature of our proposed model is that it transmits very low optical power into FSO channel utilizing 64 QAM modulation scheme. The model performance was observed for various data rates up to 120Gbps and for a LOS range of 1.2 Km. The model was implemented on Optiwave – Optisystem software over a Free Space Optical communication channel.
本文提出了一种利用64 QAM调制方案的自由空间光通信收发器模型,该模型的独特之处在于它利用64 QAM调制方案向FSO信道传输极低的光功率。在高达120Gbps的各种数据速率和1.2 Km的LOS范围下观察了该模型的性能。该模型在Optiwave - Optisystem软件上通过自由空间光通信信道实现。
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引用次数: 3
A Variable Length Genetic Algorithm approach to Optimize Data Collection using Mobile Sink in Wireless Sensor Networks 基于变长遗传算法的无线传感器网络移动汇聚数据采集优化
Raj Anwit
Data collection using mobile sink (MS) in wireless sensor network (WSN) is an efficient approach to collect data from sensor nodes (SNs). There are several advantages of using a MS like, it helps to alleviate the sink hole problem, balances energy consumption of the network, enhances network lifetime etc. The MS has to go through the WSN and collect data from SNs by stopping at some predefined locations from where SNs are in its vicinity. Finding the number of such locations is a fundamental problem in the path design of a MS. In this paper, we present a novel variable length gentic algorithm (VLGA) to find a solution to the problem. The algorithm finds the optimal number and location of sojourn points which are used to design the tour of the MS. The algorithm is simulated extensively and compared with the TSP algorithm. The results obtained shows better performance of VLGA over TSP algorithm in terms of path length and data collection time of the MS.
在无线传感器网络(WSN)中,利用移动接收器(MS)采集数据是一种有效的从传感器节点(SNs)采集数据的方法。使用MS有几个优点,例如,它有助于缓解sink hole问题,平衡网络的能量消耗,提高网络寿命等。MS必须通过WSN,并在SNs附近的一些预定义位置停下来,从SNs收集数据。在本篇论文中,我们提出了一种新的变长遗传算法(VLGA)来解决这个问题。该算法寻找逗留点的最优数量和位置,用于设计ms的行程,并与TSP算法进行了广泛的仿真比较。结果表明,VLGA算法在MS的路径长度和数据采集时间方面优于TSP算法。
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引用次数: 7
Testing the conformity of GPS and IRNSS in terms of ionospheric delay and position errors 测试GPS和IRNSS在电离层延迟和位置误差方面的一致性
T. Biswas, P. Banerjee, A. Paul
With the establishment of Indian Regional Navigation Satellite System (IRNSS), India envisages to have an independent navigation system apart from GNSS. This system also brings great opportunity to the space science community to compare and study its performance with existing satellite-based navigation systems. The present study is focused on the variations of the IRNSS signals at different frequencies as well as with GPS, based on the parameters of ionospheric delay and receiver position.
随着印度区域导航卫星系统(IRNSS)的建立,印度设想拥有一个除了GNSS之外的独立导航系统。该系统还为空间科学界提供了与现有卫星导航系统进行性能比较和研究的巨大机会。本文研究了基于电离层时延和接收机位置参数的IRNSS信号在不同频率下的变化以及与GPS的关系。
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引用次数: 2
期刊
2018 5th International Conference on Signal Processing and Integrated Networks (SPIN)
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