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2019 26th International Conference on Telecommunications (ICT)最新文献

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Topological Interference Management: Trade-off Between DoF and SIR for Cellular Systems 拓扑干扰管理:蜂窝系统DoF和SIR之间的权衡
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798819
Hassan Kallam, L. Cardoso, J. Gorce
Topological interference management (TIM) allows studying the degrees of freedom (DoF) of partially connected linear interference communication networks, where the channel state information at the transmitters (CSIT) is restricted to the topology of the network, i.e., a knowledge of which interference links are weak and which are strong. In this paper, we consider TIM for an infinite downlink cellular network in the one-dimensional (1D) linear and the two-dimensional (2D) hexagonal models. We consider uniformly distributed users in each cellular cell, effectively creating a continuous distribution of users, aiming to study user classes based on different interference profiles rather than on actual individual users' positions. We also consider the construction of the TIM network topology by analyzing different interference thresholds. Unlike previous works, we use TIM at the user class level to find the system's DoF independent of the actual user position. Finally, after proposing a fractional coloring scheme that can achieve the optimal DoF solution, a trade-off between DoF and SIR is given.
拓扑干扰管理(TIM)允许研究部分连接的线性干扰通信网络的自由度(DoF),其中发射机(CSIT)的信道状态信息仅限于网络的拓扑结构,即了解哪些干扰链路弱,哪些干扰链路强。在本文中,我们考虑了一维线性和二维六边形模型下无限下行蜂窝网络的TIM。我们在每个蜂窝单元中考虑均匀分布的用户,有效地创建了用户的连续分布,旨在根据不同的干扰概况而不是实际的单个用户位置来研究用户类别。我们还通过分析不同的干扰阈值来考虑TIM网络拓扑结构的构建。与以前的工作不同,我们在用户类级别使用TIM来独立于实际用户位置找到系统的DoF。最后,提出了一种能够实现最优DoF的分数着色方案,并给出了DoF和SIR之间的权衡。
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引用次数: 1
Performance study of MPA, Log-MPA and MAX-Log-MPA for an uplink SCMA scenario 上行SCMA场景下MPA、Log-MPA和MAX-Log-MPA性能研究
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798841
Wissal Ben Ameur, P. Mary, Marion Dumay, J. Hélard, J. Schwoerer
Sparse code multiple access (SCMA) is a promising non-orthogonal multiple access scheme in order to fulfill the stringent 5G use cases requirements. SCMA can be seen as an improvement of low density signature orthogonal frequency division multiple access that takes advantage of codes sparsity to yield users overload. Generally, SCMA is implemented with message passing algorithm (MPA) at the decoder to benefit from the strong iterative decoding performance. On the other hand, it suffers from high complexity due to the large number of involved exponential operations to compute the log likelihood ratio (LLR). Hence, simplified sub-optimal versions of MPA known as MAX-Log-MPA and Log-MPA were proposed in order to ensure a trade-off between system complexity and performance. This paper presents a comprehensive comparison between those three algorithms in Gaussian and fading channels and precisely explains algorithms performance through a study of the extrinsic information behavior.
稀疏码多址(SCMA)是一种很有前途的非正交多址方案,以满足严格的5G用例要求。SCMA可以看作是对低密度签名正交频分多址的改进,它利用了码的稀疏性来避免用户过载。通常,SCMA在解码器上使用消息传递算法(MPA)来实现,以获得较强的迭代解码性能。另一方面,由于对数似然比(LLR)的计算涉及大量的指数运算,因此具有较高的复杂性。因此,提出了简化的次优MPA版本,即MAX-Log-MPA和Log-MPA,以确保系统复杂性和性能之间的权衡。本文对这三种算法在高斯信道和衰落信道下的性能进行了全面的比较,并通过对外部信息行为的研究精确地解释了算法的性能。
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引用次数: 29
New Architecture for Multi-hop Cellular Networks 多跳蜂窝网络的新架构
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798778
Salwa Othmen, F. Zarai, A. Belghith
Traditional single hop cellular architecture fails to provide high quality of services (QoS) throughout the cells area due to many constraints such as the strong attenuation of signal with the distance. This signal degradation results in that mobile stations located at the boundaries of cells experience poor QoS level. For that reason, the multi-hop cellular architectures that use the mobile relays and device to device (D2D) communications have been integrated to overcome the limitations of the single hop cellular technology. However, these integrated multi-hop architectures increase significantly the cost at the management and deployment phases as they are based on adding additional entities such as the fixed relays. In addition, exploiting the mobile devices capabilities continuously for a long period in routing data increases the energy consumption and load of such mobile. To overcome this problem, in this paper we propose a new architecture for multi-hop cellular networks. The proposed architecture consists of dividing each cell on a set of clusters comprising the mobiles that are within a pre-specified distance. Then, we apply our proposed algorithm performed by the base station to select the head of each cluster. To evaluate our proposal, extensive simulations are performed using Network Simulator (NS-2) tool.
传统的单跳蜂窝结构由于信号随距离的衰减等诸多限制,无法在整个蜂窝区域内提供高质量的服务。这种信号退化导致位于小区边界的移动站体验到较差的QoS水平。因此,使用移动中继和设备到设备(D2D)通信的多跳蜂窝架构已被集成,以克服单跳蜂窝技术的局限性。然而,这些集成的多跳架构在管理和部署阶段显著增加了成本,因为它们基于添加诸如固定中继之类的附加实体。此外,长时间持续利用移动设备的功能来路由数据会增加此类移动设备的能耗和负载。为了克服这一问题,本文提出了一种新的多跳蜂窝网络结构。所提出的体系结构包括将每个单元划分在一组集群上,这些集群由预先指定距离内的移动设备组成。然后,我们应用基站执行的算法来选择每个集群的头部。为了评估我们的建议,使用网络模拟器(NS-2)工具进行了广泛的模拟。
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引用次数: 1
Evolutionary Game based Heterogeneous Wireless Network Selection with Multiple Traffics in 5G 基于进化博弈的5G多流量异构无线网络选择
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798772
Xiaoqian Wang, Bei Liu, Xin Su, Xibin Xu, Limin Xiao
Heterogeneous wireless network selection is considered as one of the key technologies to utilize the network resources in next generation communication networks. In this paper, we propose a network selection scheme with multiple traffics based on analytic hierarchy process (AHP) and evolutionary game. The utility function used in this paper is designed as a compromise between available capacity and other network attributes. After analyzing the dynamics of populations' behavior, the existence of evolutionary equilibrium is analyzed and proved by simulations. Simulations show that our scheme has a better performance of per-user switchings than the commonly used AHP scheme.
异构无线网络选择被认为是下一代通信网络中利用网络资源的关键技术之一。本文提出了一种基于层次分析法和进化博弈的多流量网络选择方案。本文使用的效用函数被设计为可用容量和其他网络属性之间的折衷。在分析种群行为动态的基础上,通过仿真分析和证明了进化平衡的存在性。仿真结果表明,该方案比常用的AHP方案具有更好的单用户切换性能。
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引用次数: 5
SANE: Smart Networks for Urban Citizen Participation 城市公民参与的智能网络
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798771
Heiko Bornholdt, David Jost, Philipp Kisters, Michel Rottleuthner, Dirk Bade, W. Lamersdorf, T. Schmidt, Mathias Fischer
The increasing urbanization results in a rising demand for smart city platforms that optimize limited resources and thus save resources and increase the quality of living at the same time. Several systems have evolved in the past to address such issues by providing platforms for collecting, sharing, and processing urban data. However, these existing platforms only partially address challenges like fostering the participation of citizens, protecting their privacy, and assuring certain levels of quality of information. In this paper, we present the architecture of SANE as an open, citizen-centric, scalable, and privacy-preserving smart city platform. SANE is intended as open platform on which citizens can contribute data but also hardware, without any central authority or control. Moreover, citizens maintain full control on their data and its usage. SANE comes with rich and distributed data analytics functionality that is intended to help citizens to answer data-related question in the context of smart cities.
随着城市化进程的加快,人们对智能城市平台的需求日益增长,智能城市平台需要优化有限的资源,从而在节约资源的同时提高生活质量。过去已经发展了一些系统,通过提供收集、共享和处理城市数据的平台来解决这些问题。然而,这些现有的平台只能部分解决诸如促进公民参与、保护他们的隐私和确保一定水平的信息质量等挑战。在本文中,我们将SANE架构描述为一个开放的、以公民为中心的、可扩展的、保护隐私的智慧城市平台。SANE是一个开放的平台,公民可以在这个平台上贡献数据,也可以贡献硬件,没有任何中央权威或控制。此外,公民对他们的数据及其使用拥有完全的控制权。SANE具有丰富的分布式数据分析功能,旨在帮助市民在智慧城市的背景下回答与数据相关的问题。
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引用次数: 8
Design and Implementation of Signal Processing Unit for Two-Way Relay Node in MIMO-SDM-PNC System MIMO-SDM-PNC系统双向中继节点信号处理单元的设计与实现
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798767
Minh Le Nguyen, Vu-Duc Ngo, X. Tran, Minh-Tuan Le
This paper investigates design and implementation of the signal processing unit for the relay node in a two-way relay multiple-input multiple-output spatial division multiplexing (MIMO-SDM) system using physical-layer network coding (PNC), reffered to as MIMO-SDM-PNC. Based on Field-programmable gate array (FPGA) platform, two processing architectures for zero-forcing (ZF) and minimum mean square error (MMSE) detector are proposed for the relay node. Using the standard pipe-lining and the parallel computing methodologies, a novel architecture is developed in order to achieve low latency and low-area occupation for FPGA implementation. The proposed architecture has been composed in Verilog language and synthesized on the ISE tool for Xilinx FPGA Virtex 7. Experimental results demonstrate that the proposed design offers high performance in terms of low latency and high throughput.
本文研究了采用物理层网络编码(PNC) (MIMO-SDM -PNC)的双向中继多输入多输出空分复用(MIMO-SDM)系统中中继节点信号处理单元的设计与实现。基于现场可编程门阵列(FPGA)平台,提出了针对中继节点的零强制(ZF)和最小均方误差(MMSE)检测两种处理架构。利用标准的管道衬砌和并行计算方法,开发了一种新的架构,以实现FPGA实现的低延迟和低面积占用。该体系结构采用Verilog语言编写,并在Xilinx FPGA Virtex 7的ISE工具上进行了综合。实验结果表明,该设计具有低延迟和高吞吐量的特点。
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引用次数: 2
Feature fusion by using LBP, HOG, GIST descriptors and Canonical Correlation Analysis for face recognition 基于LBP、HOG、GIST描述符和典型相关分析的特征融合人脸识别
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798816
Hung Ta Minh Nhat, Vinh Truong Hoang
Face recognition is the most active research topics in machine vision because of its highly secured demands. The fusion of multiple features can enhance the accuracy of face recognition systems instead of using only one type of feature. However, this leads to increase the storage and processing time. In this work, we apply feature fusion by using Canonical Correlation Analysis to concatenate two different feature sources for coding a facial image. Three popular descriptors (LBP, HOG, GIST) have been investigated for extracting facial features based on block division.
人脸识别因其安全性要求高而成为机器视觉领域最活跃的研究课题。多种特征的融合可以提高人脸识别系统的准确率,而不是只使用一种特征。然而,这会增加存储和处理时间。在这项工作中,我们通过使用典型相关分析将两个不同的特征源连接起来进行面部图像编码,从而应用特征融合。研究了基于块分割的三种常用描述符(LBP、HOG、GIST)提取人脸特征。
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引用次数: 20
Dynamic priority assignment for SLA compliance in service function chains 服务功能链中SLA遵从性的动态优先级分配
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798785
F. Wetzels, H. V. D. Berg, J. Bosman, R. Mei
In service function chaining, data flows from a particular application or user travel along a pre-defined sequence of network functions. Appropriate service function chaining resource allocation is required to comply with the service level required by the application. In this paper, we introduce a dynamic priority assignment for flows that compete for service using a particular network function in a chain. Using the recent results of the performance metrics of transient birth–death processes, we analyse this priority assignment and develop an optimal strategy for selecting a (cheap) low- or (expensive) high-priority service, given the flow's service level agreement requirements. A decision table can, thus, be created to facilitate the fast, online priority scheduling of newly arriving flows requesting service.
在业务功能链中,来自特定应用程序或用户的数据流沿着预定义的网络功能序列传输。需要适当的业务功能链资源分配,以符合应用程序所需的服务级别。在本文中,我们引入了一种动态优先级分配,用于使用链中的特定网络功能竞争服务的流。利用瞬态出生-死亡过程性能指标的最新结果,我们分析了这种优先级分配,并根据流的服务水平协议要求,制定了选择(便宜的)低优先级或(昂贵的)高优先级服务的最佳策略。因此,可以创建决策表,以促进对新到达的请求服务的流进行快速、在线的优先级调度。
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引用次数: 1
Offering smarter learning support through the use of biometrics 通过使用生物识别技术提供更智能的学习支持
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798863
Georgios A. Dafoulas, Jerome Samuels-Clarke, C. Maia, Almaas A. Ali, Ariadni Tsiakara
The Internet of Things (IoT) has evolved into a mainstream keyword describing the use of interconnected device for data transfer. The authors present their current research study that aims at collecting biometric data from learners and using them for providing innovative feedback for a number of learning tasks. The paper discusses how measuring Galvanic Skin Response heartbeat rate and voice patterns can help to provide an alternative type of learner support. The discussion also covers how biometrics data are filtered by applying a number of profiling techniques to classify learners in different groupings. The paper also briefly touches on hardware aspects of the work carried out, as well as analysis of data sets from a student cohort.
物联网(IoT)已经发展成为描述使用互联设备进行数据传输的主流关键词。作者介绍了他们目前的研究,旨在收集学习者的生物特征数据,并利用它们为许多学习任务提供创新的反馈。本文讨论了如何测量皮肤电反应心率和声音模式可以帮助提供另一种类型的学习者支持。讨论还涵盖了如何通过应用一些分析技术来过滤生物识别数据,将学习者分为不同的组。本文还简要介绍了所开展工作的硬件方面,以及对学生群体数据集的分析。
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引用次数: 3
MDBA: Detecting Malware based on Bytes N-Gram with Association Mining 基于关联挖掘的字节N-Gram恶意软件检测
Pub Date : 2019-04-08 DOI: 10.1109/ICT.2019.8798828
Bowei Li, Yongzheng Zhang, Junliang Yao, Tao Yin
Malware has always threatened the security of networks and computer systems. The traditional methods for malware detection are signature-based with manually designed rules. Some recent methods involving static or dynamic analysis require professional tools to extract features, while feature engineering is time-consuming and labor-intensive. In this paper, we propose MDBA, the Malware Detection based on Association mining method. Our approach only takes bytes n-grams from PE binaries as features, which can be easily obtained. By mining the n-gram features, we can produce association rules that satisfy the minimum support and the minimum confidence constraints. Based on the association rules, a classifier is built to detect whether a PE executable is malicious or not. To demonstrate the capability of our MDBA approach, we organize a large dataset with more than 10,000 PE files and conduct series of experiments on the dataset. The results show that our approach not only achieves high performance of malware detection, but also is capable of discovering malware of unknown types.
恶意软件一直威胁着网络和计算机系统的安全。传统的恶意软件检测方法是基于签名和人工设计的规则。最近一些涉及静态或动态分析的方法需要专业的工具来提取特征,而特征工程是耗时和劳动密集型的。本文提出了基于关联挖掘的恶意软件检测方法MDBA。我们的方法只需要PE二进制文件中的字节n-gram作为特征,这很容易获得。通过挖掘n-gram特征,我们可以生成满足最小支持度和最小置信度约束的关联规则。基于关联规则,构建分类器来检测PE可执行文件是否为恶意文件。为了证明我们的MDBA方法的能力,我们组织了一个包含超过10,000个PE文件的大型数据集,并在数据集上进行了一系列实验。结果表明,该方法不仅实现了高性能的恶意软件检测,而且能够发现未知类型的恶意软件。
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引用次数: 14
期刊
2019 26th International Conference on Telecommunications (ICT)
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