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2017 9th International Conference on Communication Systems and Networks (COMSNETS)最新文献

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Multi-criteria based federation selection in cloud 云中基于多标准的联邦选择
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945375
Benay Kumar Ray, Asif Iqbal Middya, Sarbani Roy, Sunirmal Khatua
Cloud federation has emerged as a new paradigm in which different service providers collaborate to overcome limitation of cloud resource during sudden spikes in demand and improve quality of service (QoS) for delivered cloud services. The growing number of cloud federation to provide cloud services has made service selection a complex task due to varied nature of parameters like price, QoS and trust of different federations. In this context, formal decision making methodology is required to find the best federation which can deliver a services with high QoS and trust in a cost effective way. The proposed model conducts a multi-criteria decision analysis to select best cloud federation in specific time period in accordance with user preference over each parameter. The experimental result and analysis validate the effectiveness of our proposed model.
云联盟已经成为一种新的范例,在这种范例中,不同的服务提供商协作克服需求突然激增期间云资源的限制,并提高所交付云服务的服务质量(QoS)。提供云服务的云联盟越来越多,这使得服务选择成为一项复杂的任务,因为不同联盟的价格、QoS和信任等参数的性质各不相同。在这种情况下,需要正式的决策制定方法来找到能够以经济有效的方式提供具有高QoS和信任的服务的最佳联合。该模型根据用户对各参数的偏好进行多准则决策分析,选择特定时间段内的最佳云联盟。实验结果和分析验证了该模型的有效性。
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引用次数: 5
Using traffic analysis for simultaneous detection of BitTorrent and streaming video traffic sources 利用流量分析同时检测bt和流媒体视频的流量源
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945361
Yan Shi, S. Biswas
This paper presents a framework for a firewall to analyze and block BitTorrent file-sharing protocol using Traffic Analysis (TA) methods. BitTorrent traffic can be a concern of network administrators and is a valuable target for TA based investigation. In this work, the ability of a TA based classifier to identify the existence of BitTorrent traffic is tested under the condition that it is not only encrypted by a Virtual Private Network (VPN) tunnel but also mixed with other types of network traffic (including video streaming traffic and web traffic). The TA based classifier is comprised of 2 steps: a pre-filtering step and the actual classification step. The test results show that not only is it possible for the TA based classifier to distinguish BitTorrent traffic from the encrypted mixture, but the classifier can also tell the source of the streaming video in the mixture with high accuracy. The 2-step classifier is also proven to have boosted the accuracy by 15%. The results indicate the possibility of implementing a TA based firewall for monitoring BitTorrent traffic.
本文提出了一种基于流量分析方法的防火墙框架,用于分析和阻止BitTorrent文件共享协议。BitTorrent流量是网络管理员关注的问题,也是基于TA的调查的一个有价值的目标。在这项工作中,基于TA的分类器识别BitTorrent流量存在的能力在以下条件下进行了测试:BitTorrent流量不仅由虚拟专用网(VPN)隧道加密,而且与其他类型的网络流量(包括视频流流量和web流量)混合。基于TA的分类器由2个步骤组成:预过滤步骤和实际分类步骤。测试结果表明,基于TA的分类器不仅可以将BitTorrent流量与加密后的混合流区分开来,而且分类器还能以较高的准确率判断混合流中的流视频来源。两步分类器也被证明提高了15%的准确率。结果表明实现基于TA的防火墙监控BitTorrent流量的可能性。
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引用次数: 1
Design and implementation of a network function framework for performance scalability 设计和实现一个网络功能框架的性能可扩展性
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945457
S. Woo
NFV (Network Function Virtualization) promises reducing management cost by moving network functions (NFs) from proprietary hardware to software on VMs (Virtual Machines) running on commodity servers [1]. NFV promises the benefit of virtualization to network applications. New NFs are easily deployed as VMs without specially packaged hardware. Virtualization ensures high availability through failover, and high resource utilization through elastic scaling of VM instances.
NFV(网络功能虚拟化)承诺通过将网络功能(NFs)从专有硬件转移到运行在商品服务器上的vm(虚拟机)上的软件来降低管理成本[1]。NFV向网络应用程序承诺虚拟化的好处。新的NFs可以轻松地作为虚拟机部署,无需特别打包硬件。虚拟化通过故障转移实现高可用性,通过虚拟机实例的弹性伸缩实现高资源利用率。
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引用次数: 0
Predictive analytics for non-stationary V2I channel 非平稳V2I信道的预测分析
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945383
Mohanad Al-Ibadi, A. Dutta
Vehicle to Infrastructure (V2I) channels are particularly difficult to analyze because of high mobility and localized scattering from nearby vehicles and road-side features. The spatio-temporal variation of the scattering environment makes the channel a non-stationary stochastic process, which renders conventional, receiver-side channel conditioning techniques ineffective for this emerging application. Our work takes a radically different approach to introduce predictive analytics at the Road-Side Unit (RSU) to proactively compensate for channel variations over time and frequency while precisely fitting into contemporary protocols like Dedicated Short Range Communication (DSRC) and Wireless Access in Vehicular Environment (WAVE). By assimilating the channel state feedback built into these protocols, we employ an iterative learning algorithm to gather localized knowledge of the channel profile. This acquired knowledge is used to pre-condition the downlink waveform to lower the Bit Error Rate (BER) by ≈ 100 times, when compared to the current vehicular communication standards even at a relatively high Signal to Noise (SNR) of 17 dB. Further, our algorithm is able to predict the non-stationary V2I channel with an average absolute error of 10−2 in dense scattering environment.
车辆到基础设施(V2I)通道特别难以分析,因为它具有高机动性和附近车辆的局部散射以及路边特征。散射环境的时空变化使信道成为一个非平稳的随机过程,这使得传统的接收机侧信道调节技术对这种新兴应用无效。我们的工作采用了一种完全不同的方法,在路侧单元(RSU)中引入预测分析,以主动补偿频道随时间和频率的变化,同时精确地适应专用短距离通信(DSRC)和车载环境无线接入(WAVE)等当代协议。通过吸收这些协议中内置的通道状态反馈,我们采用迭代学习算法来收集通道配置文件的局部知识。与目前的车载通信标准相比,即使在相对较高的信噪比(SNR)为17 dB的情况下,也可以利用所获得的知识对下行波形进行预处理,将误码率(BER)降低约100倍。此外,我们的算法能够在密集散射环境下预测非平稳V2I信道,平均绝对误差为10−2。
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引用次数: 4
Cooperative localization in small world wireless sensor networks 小世界无线传感器网络的协同定位
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945408
O. Pandey, Akshay Mahajan, R. Hegde
Small world characteristics (SWC) have been observed and studied in a wide range of disciplines such as social, biological, electrical and computer networks. However, the significance of SWC in wireless sensor network (WSN) applications has hitherto not been investigated. This work investigates the significance of introducing SWC in a conventional WSN for improving the accuracy of WSN node localization. In this context, nodes with large radio range are utilized to introduce SWC into a conventional WSN. Subsequently, a cooperative node localization method over the small world WSN using multidimensional scaling is developed. The proposed method yields improved localization performance when compared to node localization over conventional WSN.
小世界特征(SWC)已经在社会、生物、电子和计算机网络等广泛的学科中被观察和研究。然而,SWC在无线传感器网络(WSN)应用中的重要性迄今尚未得到研究。本文研究了在传统WSN中引入SWC对提高WSN节点定位精度的意义。在这种情况下,利用具有大无线电范围的节点将SWC引入传统的WSN。在此基础上,提出了一种基于多维尺度的小世界WSN协同节点定位方法。与传统WSN的节点定位方法相比,该方法具有更好的定位性能。
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引用次数: 3
On detecting acceptable air contamination in classrooms using low cost sensors 用低成本传感器检测教室可接受的空气污染
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945439
P. K. Sharma, B. Poddar, Soumyo Dey, S. Nandi, T. De, M. Saha, Sandip Mondal, Sujoy Saha
In present scenario of the world, environmental pollution is one of the leading challenges. Most often the educational institutes and organizations in developing countries suffer from polluted environment due to overcrowded rooms, improper planning and poor infrastructure. Students/faculties in a classroom could suffer from health issues due to prolonged exposure to such environment. On an average a student/faculty is exposed to such environment for eight hours per day. A student/faculty could undergo physical as well as cognitive hazards. This paper tends to detect the duration for which a classroom environment can be considered healthy for a given number of students. We built an Air Quality Monitoring Unit using low cost gas sensors which could compare the air contamination level of the environment with specified standards to detect when the environment tends to get uncomfortable for students/faculties. This in turn could result in reduced absentees and improved performance of students/faculties. Some useful results came to our observation such as, in a class of 30 students the concentration level of CO2 increases about 28.14% as compared to empty classroom whereas in a class of 40 students in the same classroom it increases about 55.33% in a duration of 2 hours.
在当今世界,环境污染是最主要的挑战之一。发展中国家的教育机构和组织往往由于房间拥挤、规划不当和基础设施落后而遭受环境污染。教室里的学生/教师由于长时间暴露在这样的环境中,可能会出现健康问题。平均而言,学生/教师每天暴露在这样的环境中8小时。学生/教师可能会遭受身体和认知上的危害。本文倾向于检测课堂环境对于给定数量的学生来说可以被认为是健康的持续时间。我们建立了一个空气质素监测组,使用低成本的气体传感器,将环境的空气污染程度与指定的标准进行比较,以检测环境何时会使学生/教师感到不舒服。这反过来又可以减少缺勤,提高学生/学院的表现。我们观察到了一些有用的结果,例如,在一个30名学生的班级中,二氧化碳浓度水平比空教室增加了约28.14%,而在同一个教室中,在一个40名学生的班级中,在2小时的时间内,二氧化碳浓度增加了约55.33%。
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引用次数: 9
A framework for ICT-based primary healthcare delivery for children 基于信息通信技术的儿童初级卫生保健服务框架
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945447
Safikureshi Mondal, N. Mukherjee
Information and Communication Technologies (ICT) provides access to sources of knowledge or health information through technologies like Internet, wireless network, mobile phones etc. Primary healthcare delivery based on mobile devices can achieve the goal of “health for all” and meet the requirements for people's basic health through a comprehensive approach. This paper proposes a framework for ICT based primary healthcare delivery from remote places particularly for regular supervision for neonatal care of pregnant woman to assist diagnosis of diseases of children, and immunization of children. These three main common primary healthcare services may address the problem of highest mortality rate according to National Rural Health Mission (NHRM). However, a lot of challenges are faced to implement these services. The workflow or activity diagrams are shown for the implementation of diagnosis assistance and neonatal care of pregnant woman and immunization of children.
信息和通信技术(ICT)通过互联网、无线网络、移动电话等技术提供获取知识或健康信息的途径。基于移动设备的初级卫生保健服务可以实现“人人享有卫生保健”的目标,通过综合手段满足人们对基本健康的需求。本文提出了一个基于信息通信技术的框架,用于从偏远地区提供初级卫生保健服务,特别是对孕妇的新生儿护理进行定期监督,以协助诊断儿童疾病,并为儿童接种疫苗。根据国家农村保健团的说法,这三种主要的共同初级保健服务可以解决死亡率最高的问题。然而,实现这些服务面临着许多挑战。工作流程或活动图显示了实施诊断援助和孕妇新生儿护理和儿童免疫接种。
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引用次数: 2
Simulation framework for modeling bidirectional mixed traffic 双向混合交通建模仿真框架
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945430
Punith B. Kotagi, Gowri Asaithambi
Most of the Indian urban roads are bi-directional in nature consists of mix up of different vehicle types with weak lane discipline. A mathematical or analytical treatment of such condition is found infeasible due to its complex nature. Hence, simulation has become inevitable tool for analysis and interpretation of such real world situations. There are only few studies which focuses exclusively on developing a bidirectional traffic simulation model considering the longitudinal and lateral behaviour of vehicles for urban undivided roads. With the above motivation, the present study focuses on development of simulation models for bi-directional mixed traffic flow using object oriented programming (OOP) concepts. The proposed model would be of significant assistance to traffic engineers while making key decisions in traffic control and management policies.
印度大多数城市道路本质上是双向的,由不同类型的车辆混合而成,车道纪律薄弱。由于其复杂性,对这种情况的数学或分析处理是不可行的。因此,模拟已经成为分析和解释这些现实世界情况的不可避免的工具。只有很少的研究集中于开发考虑城市不分割道路车辆纵向和横向行为的双向交通模拟模型。基于上述动机,本研究着重于利用面向对象编程(OOP)概念开发双向混合交通流仿真模型。所提出的模型将对交通工程师在交通控制和管理政策方面的关键决策提供重要的帮助。
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引用次数: 2
Profiting from attacks on real-time price communications in smart grids 从攻击智能电网的实时价格通信中获利
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945372
Paul C. Wood, S. Bagchi, Alefiya Hussain
The smart grid (SG) promises to revolutionize power grid efficiency and reliability by bringing wide-area control and coordination between both power producers and widely distributed consumers. Such improvements, however, depend on reliable communication infrastructures for cooperation, thus creating an interdependence between wide area networks and the power grid. Real-time pricing (RTP) systems coordinate producers and consumers via price signals, and recent research has shown that network disruptions in RTPs can significantly harm or disrupt power grid operation. In this paper, we theorize and demonstrate how strategic network disruptions can further disrupt grid operations in ways that are profitable to a strategic adversary. We quantify the economic impacts of a strategic adversary that utilizes denial of service (DoS) attacks to gain a financial advantage in the power market, without compromising the integrity of the RTP signals. The adversary develops a strategy of when and where to launch DoS attacks by utilizing our algorithm that optimizes prices in her favor. A defender minimizes these financial gains by obfuscating the network targets, reducing the effectiveness of attacks. Our results provide insights to the dependability of RTP when deployed across disruptable wide-area best-effort communication networks.
智能电网(SG)通过在电力生产商和分布广泛的消费者之间实现广域控制和协调,有望彻底提高电网的效率和可靠性。然而,这种改进依赖于可靠的通信基础设施进行合作,从而在广域网和电网之间建立相互依存关系。实时定价(RTP)系统通过价格信号协调生产者和消费者,最近的研究表明,实时定价系统中的网络中断会严重损害或破坏电网运行。在本文中,我们理论化并论证了战略性网络中断如何以有利于战略对手的方式进一步破坏电网运营。我们量化了战略对手利用拒绝服务(DoS)攻击在电力市场中获得财务优势的经济影响,而不损害RTP信号的完整性。对手利用我们优化价格的算法,制定了何时何地发起DoS攻击的策略。防御者通过混淆网络目标,降低攻击的有效性来最小化这些经济收益。我们的研究结果为RTP在跨中断广域尽力而为通信网络部署时的可靠性提供了见解。
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引用次数: 5
Performance evaluation of cumulant feature based automatic modulation classifier on USRP testbec 基于累积特征的自动调制分类器在USRP测试中的性能评价
Pub Date : 1900-01-01 DOI: 10.1109/COMSNETS.2017.7945409
K. P. K. Reddy, Yoganandam Yeleswarapu, S. Darak
In this paper, a USRP based testbed has been developed for evaluating the performance of cumulant feature based automatic modulation classifier (AMC) in a real radio environment. The proposed testbed consists of conventional radio transmitter with a capability to choose any one of BPSK, QPSK, QAM16 and QAM64 modulation schemes. The receiver extracts appropriate order cumulants from the received signal which are then used as features by support vector machine (SVM) based machine learning classifier. Experimental results demonstrate that the Probability of correct classification (Pec) in varying signal-to-noise ratios (SNR) follow the same increasing pattern as in case of simulation results.
为了在实际无线电环境中对基于累积特征的自动调制分类器(AMC)进行性能评估,建立了一个基于USRP的测试平台。该试验台由传统无线电发射机组成,能够选择BPSK、QPSK、QAM16和QAM64调制方案中的任何一种。接收端从接收信号中提取适当阶数的累积量,然后将其作为基于支持向量机(SVM)的机器学习分类器的特征。实验结果表明,在不同信噪比下,正确分类概率(Pec)与仿真结果具有相同的增长规律。
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引用次数: 5
期刊
2017 9th International Conference on Communication Systems and Networks (COMSNETS)
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