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2017 International Conference on Performance Evaluation and Modeling in Wired and Wireless Networks (PEMWN)最新文献

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LTE-U and WiFi coexistence in the 5 GHz unlicensed spectrum: A survey LTE-U和WiFi在5ghz无授权频谱中的共存:一项调查
Hager Ben Hafaiedh, I. Korbi, L. Saïdane, A. Kobbane
This paper addresses the channel occupation and the channel selection problem for the Long Term Evolution Unlicensed (LTE-U) technology when coexisting with the WiFi system on the unlicensed spectrum (typically the 5 GHz band). For instance, LTE is a communication standard developed by the 3GPP corporation based on the GSM/EDGE and the UMTP/HSPA technologies and conceived for high-spaced wireless communications. If we focus on LTE-U, it is an extension of the LTE-A (LTE-Advanced) scheme in unlicensed bands. In this paper, we will discuss the coexistence matters between the WiFi and LTE-U technologies. Therefore, we review the different solutions discussed in literature that addressed the coexistence issue. These works are either based on fair spectrum allocation between LTE-U and WiFi technologies or on the game theory paradigm where multi channel access and inter-dependance scenarios are discussed. As a future work, we intend to further investigate the coexistence issues between LTE-U and WiFi systems, especially in the case of inter-dependance scenarios and other configurations including hidden/exposed terminal problem in WiFi networks.
本文研究了LTE-U技术在无授权频谱(通常为5ghz频段)上与WiFi系统共存时的信道占用和信道选择问题。例如,LTE是3GPP公司基于GSM/EDGE和UMTP/HSPA技术开发的通信标准,用于高间隔无线通信。从LTE-U来看,它是LTE-A (LTE-Advanced)方案在无授权频段上的扩展。在本文中,我们将讨论WiFi和LTE-U技术之间的共存问题。因此,我们回顾了文献中讨论的解决共存问题的不同解决方案。这些工作要么基于LTE-U和WiFi技术之间的公平频谱分配,要么基于博弈论范式,其中讨论了多通道接入和相互依赖场景。作为未来的工作,我们打算进一步研究LTE-U和WiFi系统之间的共存问题,特别是在相互依赖场景和其他配置的情况下,包括WiFi网络中的隐藏/暴露终端问题。
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引用次数: 9
Narrowband communication with free-running 2.4GHz ring oscillators 窄带通信与自由运行的2.4GHz环形振荡器
D. Burnett, B. Wheeler, F. Maksimovic, O. Khan, A. Niknejad, K. Pister
Ring oscillators have area and power advantages over LC tanks, but conventional wisdom is that rings must be locked to a high-Q external reference to be useful in RF communications. In this paper we explore performance of a 2.4GHz receiver incorporating only a free-running ring as a local oscillator. Using a simple technique to compensate for frequency error, we find that a minimum-size ring fabricated in 65nm CMOS and consuming only 105μW is able to demodulate 75% of received 802.15.4 packets and, if the FSK tone deviation is doubled from 802.15.4 spec, packet receive rate exceeds 99.8%.
环形振荡器比LC储罐具有面积和功率优势,但传统观点认为,环形振荡器必须锁定在高q外部基准上,才能在RF通信中发挥作用。在本文中,我们研究了仅将自由运行环作为本振的2.4GHz接收机的性能。使用一种简单的技术来补偿频率误差,我们发现在65nm CMOS中制造的最小尺寸环仅消耗105μW,可以解调接收到的802.15.4数据包的75%,如果FSK音调偏差是802.15.4规范的两倍,数据包接收率超过99.8%。
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引用次数: 5
Performance comparison of exploiting different millimetre-wave bands in 5G cellular networks 5G蜂窝网络中利用不同毫米波频段的性能比较
R. Al-Dabbagh, H. Al-Raweshidy, N. Al-Aboody
Millimetre-wave (mm-wave) bands are considered an interesting candidate in the fifth generation (5G) mobile networks due to the high available bandwidth at these bands. Understanding the propagation performance of different mm-wave frequencies is an important issue to enhance the futuristic cellular networks. This paper investigates and compares the propagation performance of different mm-wave bands with the ultra-high frequency (UHF) by evaluating coverage and rate trends. The proposed scenario applied a map-based model for the base stations (BSs) deployment in university campus with a random distribution of users. The path loss models are determined by specifying the actual buildings' locations within the real campus map. Simulation results showed that the dense deployment of BSs will enhance the coverage of all mm-wave frequency bands and will offer limited noise networks. Comparison results showed that although the 73 GHz bands could provide good coverage with the lowest interference effects, it is still limited to small cell size. Also the 73 GHz bands results showed the higher rate achieved due to the large available bandwidth in this band.
毫米波(mm-wave)频段被认为是第五代(5G)移动网络中一个有趣的候选频段,因为这些频段的可用带宽很高。了解不同毫米波频率的传播性能是增强未来蜂窝网络的一个重要问题。本文通过对超高频(UHF)不同毫米波波段的覆盖和速率变化趋势的评估,对其传播性能进行了研究和比较。提出了一种基于地图的用户随机分布的大学校园基站部署模型。路径损耗模型通过在真实校园地图中指定实际建筑物的位置来确定。仿真结果表明,密集部署北斗系统将提高所有毫米波频段的覆盖范围,并提供有限的噪声网络。对比结果表明,尽管73 GHz频段能够以最低的干扰效应提供良好的覆盖,但仍受限于小蜂窝尺寸。此外,73 GHz频段的结果表明,由于该频段的可用带宽很大,因此实现了更高的速率。
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引用次数: 3
Experimental suitability evaluation of standardized QoS measurements over mobile broadband networks 移动宽带网络上标准化QoS测量的实验适宜性评价
E. Atxutegi, J. O. Fajardo, Eva Ibarrola, F. Liberal
The increasing awareness in quality of service (QoS), has brought QoS measuring in Mobile Broadband (MBB) networks to become a key issue. This paper provides with an evaluation of the most significant standardized Internet access measurement methods such as TCP-based and model-based approaches over a controlled testbed and MBB monitoring infrastructure called MONROE. TCP-based measurements reflect the maximum rate over the whole path, whereas, model-based measurements demonstrated to be helpful for the feasibility/suitability-check of rate-limited applications over a certain MBB area.
随着人们对服务质量(QoS)认识的提高,移动宽带(MBB)网络的QoS测量成为一个关键问题。本文提供了最重要的标准化互联网接入测量方法的评估,如基于tcp和基于模型的方法,通过一个受控的测试平台和MBB监控基础设施称为MONROE。基于tcp的测量反映了整个路径上的最大速率,而基于模型的测量被证明有助于在特定MBB区域内进行速率限制应用的可行性/适用性检查。
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引用次数: 3
Feature extraction based on principal component analysis for text categorization 基于主成分分析的文本分类特征提取
Safae Lhazmir, Ismail El Moudden, A. Kobbane
Over the past 20 years, data has increased in a large scale in various fields. Internet of Things (IoT), for instance, comprises billions of devices and the data streams coming from these devices challenge the traditional approaches to data management and contribute to the emerging paradigm of big data. To be able to handle such data adequately, it is necessary to reduce their dimensionality to a size more compatible with the resolution methods, even if this reduction can lead to a slight loss of information. The aim of this paper is to study the potential of dimensionality reduction in text categorization of a publicly available dataset CNAE-9.
在过去的20年里,各个领域的数据都在大规模地增加。例如,物联网(IoT)由数十亿台设备组成,来自这些设备的数据流挑战了传统的数据管理方法,并促成了新兴的大数据范式。为了能够充分地处理这些数据,有必要将它们的维数降低到与分辨率方法更兼容的大小,即使这种降低可能导致信息的轻微丢失。本文的目的是研究公共数据集CNAE-9文本分类中降维的潜力。
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引用次数: 7
Sensorlab2: A monitoring framework for IoT networks Sensorlab2:物联网网络监控框架
Quentin Lampin, D. Barthel
Efficiently monitoring a network requires full observability of each node. The main challenge lies in correlating the monitoring logs coming from all the nodes and reconstructing useful network-wide knowledge such as routing topology or end-to-end performance. We propose a monitoring framework in which nodes report events that are significant to the life of the network, following clear specified semantics. Clear semantics allows maintaining a network model, run on a computer on the side of the network, mirroring the state of the real network. The successive states of this model are archived in a database and can be browsed by the investigation tools instead of querying the real physical network. This is especially beneficial in the case of low bandwidth networks or resource-constrained devices encountered in the Internet of Things. With two different examples, LoRaWAN and OpenWSN, we illustrate how this monitoring framework allows using the same generic tool suite to debug, monitor and tweak a diversity of networks.
有效地监控网络需要每个节点的完全可观察性。主要的挑战在于将来自所有节点的监视日志关联起来,并重建有用的全网知识,如路由拓扑或端到端性能。我们提出了一个监控框架,其中节点报告对网络生命周期有重要意义的事件,遵循明确指定的语义。清晰的语义允许维护网络模型,运行在网络一侧的计算机上,镜像真实网络的状态。该模型的连续状态被存档在数据库中,供调查工具浏览,而不是查询真实的物理网络。在物联网中遇到低带宽网络或资源受限设备的情况下,这尤其有益。通过两个不同的例子,LoRaWAN和OpenWSN,我们说明了这个监控框架如何允许使用相同的通用工具套件来调试、监控和调整各种网络。
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引用次数: 3
Collision avoidance on shared slots in a wireless slotted network: Models and simulations 无线插槽网络中共享插槽的碰撞避免:模型与仿真
P. Minet, P. Mühlethaler, I. Khoufi
In this paper we propose an analysis of a slotted based protocol designed for devices of the Internet of Thing (IoT). In contrast to other TDMA-based protocols this scheme uses a random technique to access shared slots which presents similarities with CSMA protocols. In practice the transmissions are scheduled in a given back-off window of slots whose duration allows the transmission of a packet and its acknowledgment. Therefore this protocol can be analyzed according to the methodology introduced by Bianchi for the IEEE 802.11 protocol even if the protocol studied differs in many aspects. The model we use is also particular because we succeed in obtaining a Markov model even if the scheme used to send a packet (in a node) may depend on the transmission of the previous packet. We distinguish two protocols; in the first one, at the initial stage or after a successful transmission, the packets are transmitted without any back-off, whereas in the second protocol each transmission is always preceded by the count down of a random back-off. Extensive simulations validate the models of both protocols and a comparative performance evaluation is carried out.
在本文中,我们提出了一种针对物联网(IoT)设备设计的基于插槽的协议分析。与其他基于tdma的协议相比,该方案使用随机技术访问共享插槽,这与CSMA协议有相似之处。实际上,传输被安排在一个给定的退场窗口中,该窗口的持续时间允许传输数据包及其确认。因此,即使所研究的协议在许多方面有所不同,也可以按照Bianchi介绍的IEEE 802.11协议的方法来分析该协议。我们使用的模型也是特别的,因为我们成功地获得了一个马尔可夫模型,即使用于发送数据包(在节点中)的方案可能依赖于前一个数据包的传输。我们区分了两种协议;在第一个协议中,在初始阶段或成功传输后,数据包在没有任何回退的情况下传输,而在第二个协议中,每次传输之前总是有一个随机回退的倒计时。广泛的仿真验证了两种协议的模型,并进行了比较性能评估。
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引用次数: 1
Interference prediction framework for jointed macro/small-cell network interplay performance analysis under heterogeneous scope 异质范围下宏/小蜂窝联合网络交互性能分析的干扰预测框架
Konstantinos A. Lizos, S. A. El-atty
Deployment of uncoordinated small-cell networks are frequent and pose considerable challenges in resource management of macro-cell networks. Proliferation of mobile users and newly introduced applications with variant traffic distribution patterns elevates the probability of interference occurrence, as physical channels can be co-assigned and co-shared simultaneously at the same geographical region, thus degrading experienced QoS and energy efficiency while contributing in greener mobile networking environments. For the purposes of safeguarding the sustainability and viability of future operation for macro and small-cell interplay architectures, it is beneficial to render a mathematical framework that pre-assesses the probability of observed interference for macro users in the downlink for real networks, paving the venue for future studies to derive strategies for remedying such complexities. We demonstrate through extensive simulations the efficiency of the proposed analytical scheme. We proceed with investigating the association of theoretical and simulated results, thus converging on the validity of this measurement.
不协调的小蜂窝网络部署频繁,给宏蜂窝网络的资源管理带来了相当大的挑战。移动用户的激增和新引入的具有不同流量分布模式的应用程序提高了发生干扰的可能性,因为物理信道可以在同一地理区域同时被共同分配和共同共享,从而降低了体验到的QoS和能源效率,同时有助于更绿色的移动网络环境。为了保障宏观和小单元相互作用体系结构未来运行的可持续性和可行性,提供一个数学框架来预评估实际网络下行链路中宏观用户观察到的干扰概率是有益的,为未来研究得出补救此类复杂性的策略铺平了道路。我们通过大量的模拟证明了所提出的分析方案的有效性。我们继续研究理论和模拟结果的关联,从而集中于这种测量的有效性。
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引用次数: 0
A novel cell design approach for LTE underground tunnels coverage 一种新的LTE地下隧道覆盖小区设计方法
Jeesung Lee, Mirim Park, Young-sik Kim, Pyoung-soo Park, Junho Jeong
Recently underground subways are often constructed to accommodate more pleasant public transportation conditions in metropolitan areas. For mobile operators, it is required to provide proper cellular coverage in the underground subway tunnels with certain coverage requirement. In this paper, we propose a novel LTE cell design approach for underground tunnels based on minimum data throughput requirement over the certain percentage of coverage. The feasibility of the design approach is verified by actual measurement. We also provide a simple two-slope propagation model for tunnel environment.
最近,在大都市地区,为了适应更舒适的公共交通条件,经常建造地下地铁。对于移动运营商来说,需要在地铁地下隧道中提供适当的蜂窝网络覆盖,具有一定的覆盖要求。在本文中,我们提出了一种新的LTE蜂窝设计方法,该方法基于在一定覆盖率范围内的最小数据吞吐量要求。通过实际测量验证了设计方法的可行性。本文还对隧道环境给出了一个简单的双坡传播模型。
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引用次数: 2
A proposal of a distributed access control over Fog computing: The ITS use case 基于雾计算的分布式访问控制方案:ITS用例
Imen Riabi, L. Saïdane, Hella Kaffel Ben Ayed
Internet of Things (IoT) raises many security challenges in relation with the different applications that can be deployed over these environments. IoT access control systems must respond to the new IoT requirements such as scalability, dynamicity, real-time interaction and resources constraint. The goal of this paper is to propose an approach based on Fog and Distributed Hash Table (DHT) toward access control for the Internet of Things. To evaluate the performances of our access solution, we used NS-3 and SUMO. The preliminary obtained results show acceptable overhead for the considered Intelligent Transport System (ITS) scenario.
物联网(IoT)提出了许多与可以在这些环境上部署的不同应用程序相关的安全挑战。物联网门禁系统必须满足物联网的新需求,如可扩展性、动态性、实时交互性和资源约束。本文的目标是提出一种基于雾和分布式哈希表(DHT)的物联网访问控制方法。为了评估我们的访问解决方案的性能,我们使用了NS-3和SUMO。初步获得的结果表明,所考虑的智能交通系统(ITS)方案的开销是可以接受的。
{"title":"A proposal of a distributed access control over Fog computing: The ITS use case","authors":"Imen Riabi, L. Saïdane, Hella Kaffel Ben Ayed","doi":"10.23919/PEMWN.2017.8308029","DOIUrl":"https://doi.org/10.23919/PEMWN.2017.8308029","url":null,"abstract":"Internet of Things (IoT) raises many security challenges in relation with the different applications that can be deployed over these environments. IoT access control systems must respond to the new IoT requirements such as scalability, dynamicity, real-time interaction and resources constraint. The goal of this paper is to propose an approach based on Fog and Distributed Hash Table (DHT) toward access control for the Internet of Things. To evaluate the performances of our access solution, we used NS-3 and SUMO. The preliminary obtained results show acceptable overhead for the considered Intelligent Transport System (ITS) scenario.","PeriodicalId":383978,"journal":{"name":"2017 International Conference on Performance Evaluation and Modeling in Wired and Wireless Networks (PEMWN)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125334914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
期刊
2017 International Conference on Performance Evaluation and Modeling in Wired and Wireless Networks (PEMWN)
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