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2018 International Symposium on Networks, Computers and Communications (ISNCC)最新文献

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IoT based Smart Cities 基于物联网的智慧城市
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530997
Husam Rajab, T. Cinkler
The massive deployment of Internet of Things (IoT) is allowing Smart City projects and initiatives all over the world. The IoT is a modular approach to merge various sensors with all the ICT solutions. With over 50 billion objects will be connected and deployed in smart cities in 2020. The heart of smart cities operations is the IoT communications. IoT is designed to support Smart City concept, which aims at utilizing the most advanced communication technologies to promote services for the administration of the city and the citizens. This paper is presenting a comprehensive review of the concepts of IoT and smart cities and their motivations and applications. Moreover, this paper describes the main challenges and weaknesses of applying the IoT technologies based on smart city paradigms,
物联网(IoT)的大规模部署使世界各地的智慧城市项目和倡议成为可能。物联网是一种将各种传感器与所有ICT解决方案合并的模块化方法。到2020年,将有超过500亿个物体被连接并部署在智慧城市中。智慧城市运营的核心是物联网通信。物联网旨在支持智慧城市概念,其目的是利用最先进的通信技术来促进城市管理和市民的服务。本文全面回顾了物联网和智慧城市的概念及其动机和应用。此外,本文还描述了应用基于智慧城市范例的物联网技术的主要挑战和弱点。
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引用次数: 59
Malicious Host Detection by Imaging SYN Packets and A Neural Network 基于SYN报文成像和神经网络的恶意主机检测
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530964
Ryo Nakamura, Y. Sekiya, Daisuke Miyamoto, Kazuya Okada, Tomohiro Ishihara
As is the case for recently networked systems, traffic analysis that detects malicious hosts is one of the most important issues in achieving better security. Many methods for detecting cyber attacks have been proposed; however, methods that specialize in detecting and identifying specific attacks will be obsolete in the near future. Instead of identifying types of cyber attacks, we propose a novel method to detect malicious hosts based on their behavior characteristics when they send SYN packets. Our method does not identify types of cyber attacks. It detects malicious hosts suspiciously sending SYN packets. This paper shows that (1) we have developed a method to convert a series of SYN packets to a visual image as input for neural networks, (2) the image represents distinctive features of the behavior of the hosts, and (3) our convolutional neural network model successfully distinguishes malicious host from normal ones. Our preliminary evaluation using real-word traffic shows that the detection accuracy for identifying malicious hosts is over 98% regardless of types of attack.
与最近的网络系统一样,检测恶意主机的流量分析是实现更好的安全性的最重要问题之一。人们提出了许多检测网络攻击的方法;然而,专门用于检测和识别特定攻击的方法将在不久的将来过时。我们提出了一种基于恶意主机发送SYN包时的行为特征来检测恶意主机的新方法,而不是识别网络攻击的类型。我们的方法不能识别网络攻击的类型。检测可疑恶意主机发送SYN报文。本文表明:(1)我们开发了一种将一系列SYN数据包转换为视觉图像作为神经网络输入的方法,(2)图像代表了主机行为的显著特征,(3)我们的卷积神经网络模型成功地区分了恶意主机和正常主机。我们使用真实流量进行的初步评估表明,无论攻击类型如何,识别恶意主机的检测准确率都超过98%。
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引用次数: 5
Open Access to Intersystem Handover Control Using Multi-access Edge Computing 利用多址边缘计算实现系统间切换控制的开放访问
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8531051
E. Pencheva, D. Kireva, I. Atanasov, V. Trifonov
Multi-access Edge Computing (MEC) is a cloud technology that places storage and computing resources at the edge of the mobile network. The MEC platform provides services for radio network information, bandwidth management and device location. In this paper, we propose a new mobile edge service that enables 3rd party control on intersystem handover. The proposed service allows authorized applications to initiate device pre-registration in the target access network and then based on application-specific policy to initiate intersystem handover. Description of information flows, data models and actual interface definition are provided. Handover state models consider some implementation issues.
MEC (Multi-access Edge Computing)是一种将存储和计算资源置于移动网络边缘的云技术。MEC平台提供无线网络信息、带宽管理和设备定位服务。在本文中,我们提出了一种新的移动边缘服务,可以在系统间切换时进行第三方控制。建议的服务允许授权的应用程序在目标接入网中启动设备预注册,然后基于特定于应用程序的策略启动系统间切换。给出了信息流、数据模型和实际接口定义的描述。切换状态模型考虑了一些实现问题。
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引用次数: 3
Search Algorithms for Distributed Data Structures in P2P Networks P2P网络中分布式数据结构的搜索算法
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530977
Raed Al-Aaridhi, I. Dlikman, Newton Masinde, Kalman Graffi
The search problem in distributed systems has been evaluated and various proposals have been made to solve them. The problem is particularly pronounced when considering P2P networks, because the different types of P2P network topologies used to dictate the search mechanisms that are used. Specifically, search mechanisms may be key-based, as in structured P2P networks that use distributed data structures such as Distributed Hash Tables (DHTs), Sets, Links, and Trees, or keyword-based for unstructured P2P networks. Online systems today utilize metadata to support search algorithms. Metadata searches are trivial in unstructured networks but are a challenge to the structured networks because of the distributed data structures (DDS). This work proposes to introduce algorithms that support metadata searches in structured P2P networks that utilize DHT overlays. DDSs are introduced into the system as storage layers that support complex data structures. We show that this can be done and searching can be achieved with acceptable performance.
对分布式系统中的搜索问题进行了评估,并提出了各种解决方案。在考虑P2P网络时,这个问题尤其明显,因为使用不同类型的P2P网络拓扑来决定所使用的搜索机制。具体来说,搜索机制可能是基于键的,如在结构化P2P网络中使用分布式数据结构,如分布式哈希表(dht)、集、链接和树,或基于关键字的非结构化P2P网络。今天的在线系统利用元数据来支持搜索算法。元数据搜索在非结构化网络中是微不足道的,但由于分布式数据结构(DDS)的存在,对结构化网络构成了挑战。这项工作提出了在利用DHT覆盖的结构化P2P网络中引入支持元数据搜索的算法。dds作为支持复杂数据结构的存储层引入系统。我们证明了这是可以做到的,并且可以以可接受的性能实现搜索。
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引用次数: 3
On a Dynamic Data Placement Strategy for Heterogeneous Hadoop Clusters 异构Hadoop集群的动态数据放置策略研究
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530970
Yang Liu, C. Wu, M. Wang, Aiqin Hou, Yongqiang Wang
Hadoop is one of the most popular distributed systems for big data computing in both industry and science communities. The default data placement strategy of Hadoop Distributed File System (HDFS), which was initially designed for homogenous environments, may suffer from performance degradation when deployed in heterogeneous clusters comprised of data nodes with disparate computing power and disk capacity, hence undermining the performance of MapReduce applications. In this paper, we use a Grey Forecast model to predict data hotness dynamically and determine an appropriate number of data block replicas on the fly. Based on such information, we further propose a dynamic data placement strategy (DDPS) to decide the best location for new replicas according to their hotness. The proposed method is able to dynamically adjust data replicas stored on each node in a heterogeneous Hadoop cluster and reduce the response time of big data applications. Experimental results on a heterogeneous Hadoop cluster show that DDPS together with the prediction model significantly increases application execution efficiency and improve MapReduce performance over the default HDFS configuration.
Hadoop是工业和科学界最流行的用于大数据计算的分布式系统之一。Hadoop分布式文件系统(Hadoop Distributed File System, HDFS)的默认数据放置策略最初是为同构环境设计的,当部署在由不同计算能力和磁盘容量的数据节点组成的异构集群中时,可能会导致性能下降,从而影响MapReduce应用程序的性能。在本文中,我们使用灰色预测模型来动态预测数据热度,并动态确定适当数量的数据块副本。基于这些信息,我们进一步提出了一种动态数据放置策略(DDPS),根据新副本的热度来确定其最佳位置。该方法能够动态调整存储在异构Hadoop集群各节点上的数据副本,减少大数据应用的响应时间。在异构Hadoop集群上的实验结果表明,与HDFS默认配置相比,DDPS和预测模型显著提高了应用程序的执行效率,提高了MapReduce的性能。
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引用次数: 6
Traffic Sign Detection and Recognition Using Adaptive Threshold Segmentation with Fuzzy Neural Network Classification 基于模糊神经网络分类的自适应阈值分割交通标志检测与识别
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8531070
Abdulrahman S. Alturki
Traffic Sign Recognition (TSR) system is a significant component of Intelligent Transport System (ITS) as traffic signs assist the drivers to drive more safely and efficiently. In this paper, a new traffic sign detection and recognition approach is presented by using Fuzzy Neural Network (FNN) and it is including three stages. The first stage segments the images to extract ROIs. The segmentation is usually performed based on Adaptive thresholding to overcome the color segmentation problems. The second one detects traffic shapes. Given that the geometric form of traffic signs is limited to triangular, circular, rectangular and octagonal forms, the geometric information is used to identify traffic shapes from ROIs provided by the first stage. The third stage recognizes the traffic signs based on the information including included in their pictograms. Moreover, in this work, six types of features are extracted. These features were provided to the FNN classifier to perform the recognition. As a classifier, FNN, Artificial Neural Network (ANN) and Support Vector Machine (SVM) classifiers have been tested together with the new descriptor. The proposed method has been tested on both the German Traffic Sign Detection and Recognition Benchmark dataset. The results obtained are satisfactory when compared to the state-of-the-art methods.
交通标志识别系统(TSR)是智能交通系统(ITS)的重要组成部分,交通标志可以帮助驾驶员更安全、更高效地驾驶。本文提出了一种基于模糊神经网络(FNN)的交通标志检测与识别新方法,该方法分为三个阶段。第一阶段对图像进行分割,提取roi。为了克服颜色分割问题,通常采用自适应阈值分割。第二个检测流量形状。鉴于交通标志的几何形状仅限于三角形、圆形、矩形和八角形,因此利用几何信息从第一阶段提供的roi中识别交通形状。第三阶段是根据交通标志象形文字所包含的信息来识别交通标志。此外,在本工作中,提取了六种类型的特征。将这些特征提供给FNN分类器进行识别。作为分类器,FNN、人工神经网络(ANN)和支持向量机(SVM)分类器与新描述符一起进行了测试。该方法已在德国交通标志检测和识别基准数据集上进行了测试。与最先进的方法相比,得到的结果是令人满意的。
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引用次数: 3
Performance of IA-MMSE Iterative Structures for SFBC Decoding in MIMO Systems Using Realistic System Parameters MIMO系统中IA-MMSE迭代结构的SFBC译码性能
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530966
M. Mondin, F. Daneshgaran, F. D. Stasio
In this paper, a MIMO-OFDM system operating with SFBC encoded signals and affected by inter-cell interference is analyzed, and the performances of Interference Aware-Minimum Mean Square Error (IA-MMSE) symbol estimators are discussed in presence of realistic estimation of the interference auto-correlation matrix. Different estimation techniques are described and compared, based both on a system description using a $4times 2$ channel matrix (requiring the estimation and inversion of a $4times 4$ auto-correlation matrix), or using two $2times 2$ matrices (requiring the estimation and inversion of two $2times 2$ auto-correlation matrices). The first approach offers better performances, but the second approach has a very limited loss, counterbalanced by a simpler implementation complexity, characteristics that makes it an interesting solution in practical applications. An extensive simulation campaign using realistic system level parameters has been used for performance assessment.
分析了一种使用SFBC编码信号的MIMO-OFDM系统在小区间干扰影响下的性能,讨论了干扰感知最小均方误差(IA-MMSE)符号估计器在实际估计干扰自相关矩阵的情况下的性能。本文描述并比较了不同的估计技术,基于使用$4 × 2$信道矩阵的系统描述(需要估计和反演$4 × 4$自相关矩阵),或使用两个$2 × 2$矩阵(需要估计和反演两个$2 × 2$自相关矩阵)。第一种方法提供了更好的性能,但第二种方法的损失非常有限,实现复杂性更简单,这些特点使其在实际应用程序中成为一个有趣的解决方案。广泛的模拟活动使用现实的系统级参数已用于性能评估。
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引用次数: 0
TCP performance for Satellite M2M applications over Random Access links 随机访问链路上卫星M2M应用的TCP性能
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8531048
A. Salam, C. Roseti, F. Zampognaro
Contention Resolution Diversity Slotted ALOHA (CRDSA) random access scheme, introduced in the DVB-RCS2/NG standard, is specifically designed to support the transfer of a variety of traffic profiles that Machine to Machine (M2M) and Internet of Things (IoT) applications may generate. Protocols for M2M and IoT has recently receiver substantial upgrades, but still mainly designed with an underlying terrestrial network in mind. If clusters of sensor nodes exchange data via satellite terminals toward a sink via short-lived TCP/IP connections, many shortcomings may incur. This work aims at investigating in details the behavior for such data transfer in presence of a shared random access channel, and the advantages when using a new TCP version specifically designed for satellite links, namely TCP Wave. In particular, through a detailed simulation campaign based on the NS3 simulator, this work assesses the completion time of data delivery for M2M elastic traffic via CRDSA satellite random access, when standard TCP (NewReno) or dedicated satellite TCP (Wave) is adopted.
DVB-RCS2/NG标准中引入的争用分辨率分集开槽ALOHA (CRDSA)随机接入方案,专门用于支持机器对机器(M2M)和物联网(IoT)应用可能产生的各种流量配置文件的传输。M2M和物联网的协议最近得到了实质性的升级,但主要设计时仍然考虑到底层地面网络。如果传感器节点集群通过卫星终端通过短暂的TCP/IP连接向接收器交换数据,可能会产生许多缺点。这项工作的目的是详细调查在共享随机访问通道存在时这种数据传输的行为,以及使用专门为卫星链路设计的新TCP版本(即TCP Wave)时的优势。特别是,通过基于NS3模拟器的详细仿真活动,本工作评估了采用标准TCP (NewReno)或专用卫星TCP (Wave)时,通过CRDSA卫星随机接入的M2M弹性流量的数据传输完成时间。
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引用次数: 2
Underdetermined Blind Separation Via Rough Equivalence Clustering for Satellite Communications 基于粗糙等效聚类的卫星通信欠定盲分离
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530911
Chengjie Li, Lidong Zhu, Zhongqiang Luo
The problem of underdetermined blind source separation for satellite communications is proposed in this paper. In underdetermined blind separation, people suppose the source is sparse and the number of source signals is known when they estimate the mixture matrix. In fact, the sparsity is often not satisfied and the number of source signals is unknown. This paper presents a novel Rough Set algorithm (RS algorithm) based on rough set theory, which can get the source signal sparse points and accurately estimate the number of sources and the mixture matrix respectively, by which source signals can be reconstructed. The last simulations show the good performance of the paper's algorithm.
提出了卫星通信中的欠定盲源分离问题。在欠定盲分离中,人们在估计混合矩阵时,假设源是稀疏的,并且源信号的个数是已知的。实际上,稀疏性往往不满足,源信号的数量是未知的。本文提出了一种基于粗糙集理论的粗糙集算法(RS算法),该算法可以得到源信号的稀疏点,并分别准确估计源信号的个数和混合矩阵的个数,从而对源信号进行重构。最后的仿真结果表明了本文算法的良好性能。
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引用次数: 1
SHINE: Secure Hybrid In Network caching Environment SHINE:安全混合网络缓存环境
Pub Date : 2018-06-01 DOI: 10.1109/ISNCC.2018.8530996
S. Romano, C. Roseti, A. Tulino
In this paper we look after the secure delivery of multimedia content across an innovative Content Delivery Network comprising both satellite and terrestrial trunks. The CDN in question leverages state-of-the-art technologies both at the edges and in the core of the integrated distribution architecture and highly relies upon in-network caching strategies in order to improve its performance. We propose an architecture envisaging a combination of multicast, simulcast and unicast communication scenarios where satellite links are exploited to support local in-network caching. We analyse integrated network deployment scenarios where the satellite acts as the interconnection link between distributed in-network caches and a terrestrial CDN and/or feeds edge-network caches at micro-centre locations.
在这篇论文中,我们研究了多媒体内容的安全交付,通过一个创新的内容交付网络,包括卫星和地面中继。所讨论的CDN在集成分布架构的边缘和核心都利用了最先进的技术,并且高度依赖于网络内缓存策略来提高其性能。我们提出了一种架构,设想了多播、联播和单播通信场景的组合,其中卫星链路被利用来支持本地网络内缓存。我们分析了集成网络部署场景,其中卫星充当分布式网络内缓存与地面CDN和/或在微中心位置馈送边缘网络缓存之间的互连链路。
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引用次数: 7
期刊
2018 International Symposium on Networks, Computers and Communications (ISNCC)
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