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2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)最新文献

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An Augmented Reality ecosystem for learning environment 学习环境的增强现实生态系统
R. C. Saritha, Utkarsh Mankad, G. Venkataswamy, S. Bapu
The world has witnessed a significant change in the learning methodology by students in the last decade. With drastic technological developments in the education domain, the learning methods used by students have also evolved. The learning methods changed from, traditional classroom learning to e-learning, from e-learning to mlearning and subsequently to a new way of learning using Augmented Reality. Augmented Reality really helps in making the learning very effective and interesting in real time. It also helps in understanding some of the complex subjects in a very lucid and intuitive way. This paper discusses about an Augmented Reality learning ecosystem, which consists of Augmented Reality(AR) Learning framework and AR applications for learning environment. The implementation and benefits of Augmented Reality applications targeted for education community, namely AR Board, AR Book and AR Game are discussed.
在过去的十年里,世界见证了学生学习方法的重大变化。随着教育领域技术的迅猛发展,学生使用的学习方法也发生了变化。学习方法从传统的课堂学习到电子学习,从电子学习到移动学习,再到使用增强现实的新学习方式。增强现实确实有助于使实时学习变得非常有效和有趣。它还有助于以一种非常清晰和直观的方式理解一些复杂的主题。本文讨论了一个增强现实学习生态系统,该生态系统由增强现实(AR)学习框架和用于学习环境的AR应用组成。讨论了针对教育社区的增强现实应用,即AR板,AR书和AR游戏的实现和好处。
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引用次数: 1
Machine Learning-based Fall Detection in Geriatric Healthcare Systems 老年医疗保健系统中基于机器学习的跌倒检测
Anita Ramachandran, R. Adarsh, P. Pahwa, K. Anupama
Intelligent IoT-based ambient assisted living systems (AALS) have been a major research focus area in recent times. According to the studies conducted by the Govt. of India, elderly population in India has reached 8.3% of the total population [40]. Per the National Program for Health Care of the Elderly (NPHCE), the elderly population in India has tripled over the last 50 years, and is projected to increase to 33.32 million by 2021 and 300.96 million by 2051 [41]. Application of machine learning in AALS, such as fall detection, therefore, has the potential to have huge public impact. In this paper, we propose a fall detection system that takes into account not only various wearable sensor node parameter readings for a subject, but also his biological and physiological profile. The profile is used to determine a fall risk category for the subject. We performed machine learning experiments using public datasets for fall detection which included wearable sensor node readings. The algorithms were then retrained by feeding in the risk categorization of the subject, and results from this analyses are presented. The objective of the experiments was to find out the impact of a subject's risk categorization on the accuracy of fall detection. The algorithms presented here form part of a comprehensive geriatric healthcare system under development, which comprises wearable sensor nodes, coordinator nodes, an indoor localization framework and cloud-hosted application servers. A brief overview of the system capabilities is also presented.
基于智能物联网的环境辅助生活系统(AALS)是近年来研究的热点。根据印度政府的研究,印度的老年人口已达到总人口的8.3%[40]。根据国家老年人保健计划(NPHCE),印度的老年人口在过去50年中增加了两倍,预计到2021年将增加到3332万人,到2051年将增加到30096万人[41]。因此,机器学习在AALS中的应用,如跌倒检测,有可能产生巨大的公共影响。在本文中,我们提出了一种跌倒检测系统,该系统不仅考虑了受试者的各种可穿戴传感器节点参数读数,还考虑了受试者的生物和生理特征。该配置文件用于确定受试者的跌倒风险类别。我们使用公共数据集进行机器学习实验,用于跌倒检测,其中包括可穿戴传感器节点读数。然后,通过输入主题的风险分类对算法进行再训练,并给出了分析结果。实验的目的是找出受试者的风险分类对跌倒检测准确性的影响。本文介绍的算法是正在开发的综合老年医疗保健系统的一部分,该系统包括可穿戴传感器节点、协调器节点、室内定位框架和云托管应用服务器。还简要介绍了系统功能。
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引用次数: 6
Hybrid Pseudo-stationary Iterative Detection Algorithm for Uplink Massive MIMO Systems 上行海量MIMO系统的混合伪平稳迭代检测算法
Arijit Datta, Manish Mandloi, V. Bhatia
Massive multiple-input multiple-output (MIMO) is a core technology for 5G and beyond systems. However, symbol detection in massive MIMO requires high complexity matrix inversions. To tackle this problem, a novel and robust low complexity hybrid algorithm (HA) is proposed for uplink symbol detection in massive MIMO systems with a large number of users. Proposed HA integrates two novel techniques; non-stationary Newton iteration (NSNI) and improved sequential Richardson iteration (ISRI), which are proposed in this paper. Newton iteration (NI) is a promising technique for approximate matrix inversion, however, in this paper, Newton iteration (NI) is realized as the stationary iterative method which uses constant step size for all iterations. Consequently, NI suffers from performance-complexity trade-off. To address this issue, NSNI is proposed, which utilizes non-stationary step size that changes at each iteration. Moreover, Richardson iteration is a simple but efficient algorithm for massive MIMO detection, however, RI suffers from intersymbol interference (ISI) which is a major reason for the low performance of RI when the number of users scales up in massive MIMO system. Hence, symbols are updated sequentially to extenuate ISI in RI. In addition, to further improve the performance of RI, optimal step sizes based on each symbol-index in RI are computed and hence, an improved stationary Richardson iteration (ISRI) is introduced. Finally, to further boost bit error rate (BER), NSNI and RI are integrated into pseudo-stationary iterative HA for low complexity symbol detection in massive MIMO systems. Simulation results validate low complexity, superior BER performance and robustness of proposed HA as compared to recently reported several massive MIMO detection techniques, under both perfect and imperfect channel state information at the receiver.
大规模多输入多输出(MIMO)是5G及以后系统的核心技术。然而,大规模MIMO中的符号检测需要高复杂度的矩阵反演。为了解决这一问题,提出了一种新颖的、鲁棒的低复杂度混合算法(HA),用于具有大量用户的大规模MIMO系统的上行符号检测。本文提出的HA集成了两种新技术;本文提出了非平稳牛顿迭代(NSNI)和改进的顺序理查森迭代(ISRI)。牛顿迭代(NI)是一种很有前途的矩阵近似反演技术,但本文将牛顿迭代(NI)实现为对所有迭代采用恒定步长的平稳迭代方法。因此,NI遭受性能复杂性的权衡。为了解决这个问题,提出了NSNI,它利用了在每次迭代中变化的非平稳步长。此外,Richardson迭代是一种简单而有效的大规模MIMO检测算法,然而,在大规模MIMO系统中,当用户数量增加时,RI会受到码间干扰(ISI)的影响,这是导致RI性能下降的主要原因。因此,符号顺序更新以减轻RI中的ISI。此外,为了进一步提高RI的性能,计算了基于RI中每个符号索引的最优步长,从而引入了改进的平稳理查森迭代(ISRI)。最后,为了进一步提高误码率(BER),将NSNI和RI集成到伪平稳迭代HA中,用于大规模MIMO系统中的低复杂度符号检测。与最近报道的几种大规模MIMO检测技术相比,仿真结果验证了该方法在接收端完全和不完全信道状态信息下的低复杂度、优越的误码率性能和鲁棒性。
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引用次数: 1
Experimental Implementation of Molecular Communication System using Sampling based Adaptive Threshold Variation Demodulation Algorithm 基于采样自适应阈值解调算法的分子通信系统实验实现
Padarthi Naga Prasanth, K. Sumanth, Vijay Kumar Chakka, Gouriprasanna Roy
In this paper, we consider a tabletop molecular communication (MC) system for exchange of information through flow assisted diffusion of ethanol chemical molecules. Designing modulation and demodulation algorithms for such setup is an important research problem. We propose a demodulation algorithm using Sampling based Adaptive Threshold Variation (S-ATV) for Pulse Position Modulation (PPM) and ON/OFF keying (OOK) based modulation techniques. The performance of BER with bit duration is plotted for proposed demodulation algorithm as well as Increase detection algorithm (IDA). It is found that the proposed S-ATV demodulation algorithm has better performance than IDA for smaller bit durations.
在本文中,我们考虑了一个桌面分子通信(MC)系统,通过流动辅助扩散的乙醇化学分子交换信息。为这种设置设计调制解调算法是一个重要的研究问题。我们提出了一种基于采样的自适应阈值变化(S-ATV)的脉冲位置调制(PPM)和基于开/关键控(OOK)的调制技术的解调算法。对所提出的解调算法和增量检测算法(IDA)的误码率随比特时长的性能进行了分析。实验结果表明,在较小的位持续时间下,所提出的S-ATV解调算法比IDA解调算法具有更好的性能。
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引用次数: 4
Statistical Profiling of n-grams for Payload Based Anomaly Detection for HTTP Web Traffic 基于有效载荷的HTTP网络流量异常检测的n图统计分析
R. Pal, Naveen Chowdary
Anomalous HTTP traffic can be identified by analysing the content of HTTP packet as payload. n-gram analysis is a prominent technique for payload analysis. In this paper, a novel n-gram based anomaly detection method has been proposed for HTTP traffic. During the training phase, statistical profiling (the maximum, the minimum, the median and the average of number of occurrences in a packet) of n-grams for a data set of normal (not malicious) HTTP packets provides the basis for this work. In a test packet, the number of occurrences of an n-gram decides whether the n-gram is anomalous or not. Moreover, the deviation of number of occurrences of such an anomalous n-gram from the median (or the average) of number of occurrences of the n-gram in training packets is considered for estimating an anomaly score of the test packet. Consideration of this magnitude of the deviation from the statistical profile (median or average) of n-gram occurrences for a normal HTTP traffic is the highlight of the proposed method. Finally, an anomaly-to-normal ratio for the test packet determines whether it is malicious or normal. This technique yields better performance as compared to an existing n-gram based method of anomalous HTTP traffic detection.
通过分析HTTP报文的内容作为有效载荷,可以识别异常HTTP流量。N-gram分析是有效载荷分析的重要技术。本文提出了一种基于n图的HTTP流量异常检测方法。在训练阶段,正常(非恶意)HTTP数据包数据集的n个grams的统计分析(数据包中出现次数的最大值、最小值、中位数和平均值)为这项工作提供了基础。在测试包中,n-gram出现的次数决定了n-gram是否异常。此外,这种异常n-gram的出现次数与训练包中n-gram出现次数的中位数(或平均值)的偏差被考虑用于估计测试包的异常分数。考虑到正常HTTP流量的n-gram出现的统计概况(中位数或平均值)的偏差程度是所提出方法的重点。最后,测试包的异常与正常比率确定它是恶意的还是正常的。与现有的基于n-gram的异常HTTP流量检测方法相比,该技术产生了更好的性能。
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引用次数: 1
A Compact Dual Band Bandstop Filter Using Triangular Shaped Defected Ground Structure and Split Ring Type Defected Microstrip Line 采用三角形缺陷接地结构和分环型缺陷微带线的紧凑型双带带阻滤波器
S. Verma, M. Hashmi
This paper reports a novel compact dual band bandstop filter (DB-BSF) structure using triangular shaped defected ground structure (DGS) and split ring type defected microstrip line (DMS). The triangular shaped DGS and split ring type DMS are designed to ensure resonance at two frequencies. The proposed design represents the combination of DMS and DGS geometries analyzed by effective capacitance and effective inductance. An appropriate equivalent parallel LC circuit model has been developed for performance analysis of individual geometries. A prototype operating at 2.4 GHz and 5.86 GHz frequencies has been developed on Rogers RO4350B substrate for the demonstration of the effectiveness of the proposed design. A very good agreement between the simulated and measured results demonstrate the effectiveness of the proposed technique. The design is miniature, board size of $12 times 12 mm ^{2}$, and achieves a performance significantly improves the performance metrics of the DGS based dual band bandstop filter reported so far.
本文报道了一种采用三角形缺陷接地结构(DGS)和裂环型缺陷微带线(DMS)的新型紧凑型双带带阻滤波器(DB-BSF)结构。三角形DGS和分裂环型DMS的设计,以确保在两个频率共振。通过有效电容和有效电感对DMS和DGS的几何形状进行了分析。建立了一种合适的等效并行LC电路模型,用于单个几何形状的性能分析。在Rogers ro450b衬底上开发了工作在2.4 GHz和5.86 GHz频率的原型,以验证所提出设计的有效性。仿真结果与实测结果吻合良好,证明了该方法的有效性。该设计是微型的,电路板尺寸为12 × 12 mm ^{2}$,并且实现了显著提高目前报道的基于DGS的双带带阻滤波器的性能指标。
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引用次数: 2
Efficient 802.11 Hand-off through Load Aware Channel Probing 通过负载感知通道探测高效802.11切换
Babul P. Tewari, B. Mandal
In 802. 11 NLaN, Access Point (AP) and its associated mobile stations (MSs) forms a basic service set BSS. In such network a continuous service coverage with an acceptable throughput is highly desirable while the $mathrm {M}mathrm {S}s$ roam around the network. Limited size of WLAN BSSs with increased deployment results more transmission overlapping and frequent hand-offs. This significantly increases the delay. On the other hand, selection of appropriate target AP is another major issue as it crucially determines the obtained throughput. In this paper we propose a load aware channel probing (LACP) towards an efficient hand-off addressing these two issues simultaneously. Based on the accumulated load on the $mathrm {A}mathrm {P}s$ in range the proposed approach efficiently reduces the probe-count during hand-off by avoiding unnecessary channel probing and selects the appropriate destination AP. The objective is to reduce the hand-off delay and to enhance the obtained throughput. We first present a motivational example then develop an elegant algorithm. The novelty of the idea is established through extensive simulations. We have shown that the performance of the proposed approach is highly comparable to the other approaches from existing literature.
在802年。NLaN、接入点(AP)及其关联的移动站(MSs)构成基本业务集BSS。在这种网络中,当$ mathm {M} mathm {S} $在网络中漫游时,具有可接受吞吐量的连续服务覆盖是非常理想的。随着部署的增加,无线局域网bss的规模有限,导致传输重叠和频繁的切换。这大大增加了延迟。另一方面,选择合适的目标AP是另一个主要问题,因为它至关重要地决定了获得的吞吐量。在本文中,我们提出了一种负载感知通道探测(LACP),以实现有效的切换,同时解决这两个问题。基于范围内$ mathm {A} mathm {P}s$的累积负载,该方法通过避免不必要的通道探测,有效地减少了切换期间的探测计数,并选择了适当的目标AP。目标是减少切换延迟并提高获得的吞吐量。我们首先给出一个激励的例子,然后开发一个优雅的算法。这个想法的新颖性是通过大量的模拟得到证实的。我们已经证明,所提出的方法的性能与现有文献中的其他方法高度可比。
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引用次数: 1
Entropy Measures Based Complexity Analysis of Impulse Noise Sources for xDSL/PLC Systems 基于熵测度的xDSL/PLC系统脉冲噪声源复杂性分析
Neelima Singh, Brejesh Lall
The main objective of this paper is to do entropy measures based complexity analysis of impulse noises encountered in wireline communication systems. We have demonstrated in this paper that sample entropy, which is an information theory based statistical measure, is able to capture the time-domain complexity (in terms of variability and regularity) of impulse noises arising from most commonly used domestic electronic appliances. Results show that sample entropy features based analysis of impulse noises may also aid in identifying the primary disturber (active noise source) and thus can be helpful in troubleshooting the performance issues in wireline communication systems.
本文的主要目的是对有线通信系统中遇到的脉冲噪声进行基于熵测度的复杂度分析。我们在本文中证明了样本熵,这是一种基于信息论的统计度量,能够捕获最常用的家用电器产生的脉冲噪声的时域复杂性(就可变性和规律性而言)。结果表明,基于样本熵特征的脉冲噪声分析也有助于识别主干扰(有源噪声源),从而有助于排除有线通信系统中的性能问题。
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引用次数: 0
Intrusion Detection and Prevention in Software Defined Networking 软件定义网络中的入侵检测与防御
G. Abhilash, G. Divyansh
Software defined networking is a concept proposed to replace traditional networks by separating control plane and data plane. It makes the network more programmable and manageable. As there is a single point of control of the network, it is more vulnerable to intrusion. The idea is to train the network controller by machine learning algorithms to let it make the intelligent decisions automatically. In this paper, we have discussed our approach to make software defined networking more secure from various malicious attacks by making it capable of detecting and preventing such attacks.
软件定义网络是为了取代传统网络而提出的将控制平面和数据平面分离的概念。它使网络更易于编程和管理。由于网络只有一个控制点,因此更容易受到入侵。这个想法是通过机器学习算法来训练网络控制器,让它自动做出智能决策。在本文中,我们讨论了我们的方法,使软件定义的网络更安全的各种恶意攻击,使其能够检测和防止这种攻击。
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引用次数: 6
Geometrical Optimization of A Novel Beacon Placement Strategy for 3D Indoor Localization 一种新型室内三维定位信标放置策略的几何优化
Ravi Sharma, Venkataramana Badarla
This paper presents a novel beacon placement strategy and its geometric evaluation for the accuracy of three dimensional (3D) indoor localization. The proposed method assumes the beacon placement domain to be a grid of candidate locations on the surface of ceilings and walls of target indoor geometry. The effect of error propagation due to the geometrical arrangement between anchor beacons and target devices is formulated as an optimization objective. A Mixed Integer Linear Programming (MILP) approach is used to minimize the required total beacon count, constrained by the resulting Geometric Dilution of Precision (GDoP) at each candidate device location. To demonstrate the effectiveness of the proposed technique, the surface placement is compared against the typical linear placement of beacons which considers a planar geometry between device and beacon locations. A resulting improvement in minimum achievable GDoP while keeping the same beacon count was reported for surface over linear beacon placement.
提出了一种新的室内三维定位信标放置策略及其几何评价方法。该方法将信标放置域假设为目标室内几何形状的天花板和墙壁表面上的候选位置网格。将锚信标与目标装置之间的几何排列对误差传播的影响表述为优化目标。使用混合整数线性规划(MILP)方法来最小化所需的总信标计数,并受到每个候选设备位置的几何精度稀释(GDoP)的约束。为了证明所提出技术的有效性,将表面放置与典型的线性信标放置进行了比较,后者考虑了设备和信标位置之间的平面几何形状。据报道,在保持相同信标计数的情况下,在线性信标放置的表面上,最小可实现GDoP得到了改善。
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引用次数: 9
期刊
2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
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