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2019 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN)最新文献

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Advancing Network Function Virtualization Platforms with Programmable NICs 使用可编程网卡推进网络功能虚拟化平台
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8847032
Zhen Ni, Guyue Liu, Dennis Afanasev, Timothy Wood, Jinho Hwang
Network Function Virtualization seeks to run high performance middleboxes in a flexible, more configurable software environment. Even with advances such as kernel bypass and zero-copy IO, middlebox platforms still struggle to meet stringent throughput and latency requirements. To achieve line rates as network bandwidths rise, these platforms often must make tradeoffs such as inefficiently dedicating more CPU cores or weakening security and isolation properties. In this paper we explore how advances in programmable “smart NICs” can be leveraged by software middlebox platforms to improve performance, resource efficiency, and security. Our evaluation shows several use cases for smart NICs, which improve performance significantly while reducing resource consumption and providing strong isolation.
网络功能虚拟化寻求在灵活、更可配置的软件环境中运行高性能的中间件。即使有了内核旁路和零拷贝IO等先进技术,中间盒平台仍然难以满足严格的吞吐量和延迟需求。随着网络带宽的增加,为了实现线路速率,这些平台通常必须做出权衡,例如低效地专用更多CPU内核或削弱安全性和隔离属性。在本文中,我们探讨了可编程“智能网卡”的进步如何被软件中间件平台利用来提高性能、资源效率和安全性。我们的评估显示了智能网卡的几个用例,它们显著提高了性能,同时减少了资源消耗并提供了强大的隔离。
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引用次数: 5
LANMAN 2019 Message
Pub Date : 2019-07-01 DOI: 10.1109/lanman.2019.8846989
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引用次数: 0
The benefits of Deceit: a Malicious client in a 5G Cellular Network 欺骗的好处:5G蜂窝网络中的恶意客户端
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8847162
Jason J. Quinlan, U. Roedig
As we advance towards smart cities, autonomous vehicles and the avalanche of IoT devices proposed for the future, we need to give careful consideration to how easily compromised devices can impact network state. Current proposals for devices typically use cellular networks as the backhaul or final hop. These devices will leverage existing trust-based client-side channel metrics, such as Channel Quality Indicator (CQI), when the base-station determines scheduling decisions. In this paper, we investigate the scheduling impact of a malicious device when it changes its channel metrics, so as to improve its download rate or even to negate the download rate of others. We utilise real-time 4K ultra-high definition video delivery as an example of high throughput demand application and compare the delivery rates of multiple devices in an open-source 5G simulated NS-3 network. Our results illustrate that when a malicious client deceives the scheduler, the other clients in the network have a noticeable decrease in both viewable quality and underlying delivery rate (25% decrease in the average video quality across the non malicious clients).
随着我们向智慧城市、自动驾驶汽车和未来提出的大量物联网设备迈进,我们需要仔细考虑被入侵的设备对网络状态的影响程度。目前的设备建议通常使用蜂窝网络作为回程或最后一跳。当基站决定调度决策时,这些设备将利用现有的基于信任的客户端信道度量,例如信道质量指示器(CQI)。在本文中,我们研究了恶意设备在改变其信道指标时的调度影响,以提高其下载率甚至抵消其他设备的下载率。我们利用实时4K超高清视频传输作为高吞吐量需求应用的示例,并比较了开源5G模拟NS-3网络中多设备的传输速率。我们的结果表明,当恶意客户端欺骗调度器时,网络中的其他客户端在可视质量和底层交付率方面都有明显下降(非恶意客户端的平均视频质量下降25%)。
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引用次数: 0
MEC service placement over the Fronthaul of 5G Cloud-RANs 5G云- ran前传的MEC服务放置
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8847065
Virgilios Passas, N. Makris, Christos Nanis, T. Korakis
Radio Access Network (RAN) disaggregation is transforming mobile networks, as it allows the single click instantiation of base stations in the Cloud, and can potentially ease the integration of heterogeneous technologies for wireless access. At the same time, Multi-access Edge Computing is proven to minimize the latency for accessing services located at the network edge. In this demo, we showcase a disaggregated heterogeneous Cloud-RAN, consisting of cellular and WiFi infrastructure, providing access to edge resources placed on the fronthaul of the network to multi-homed UEs. We experiment with different wireless technologies and placements for the MEC service, and illustrate our experimental results.
无线接入网络(RAN)的分解正在改变移动网络,因为它允许在云中单击基站实例化,并且可以潜在地简化无线接入异构技术的集成。同时,多访问边缘计算被证明可以最大限度地减少访问位于网络边缘的业务的延迟。在这个演示中,我们展示了一个分解的异构Cloud-RAN,由蜂窝和WiFi基础设施组成,提供对网络前传到多户终端的边缘资源的访问。我们对MEC服务的不同无线技术和位置进行了实验,并说明了我们的实验结果。
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引用次数: 2
H2NDN: Supporting Connected Vehicle Applications with Hierarchical Hyperbolic NDN H2NDN:通过分层双曲NDN支持车联网应用
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8846985
Ning Yang, Kang-Peng Chen, Yaoqing Liu
Connected vehicle (CV) has emerged as a new computing and networking paradigm recently that can enable many beneficial CV applications. In this paper, we argue that Named Data Networking (NDN) presents a good synergy with the needs of CV applications. This drives us to propose an NDN based CV application framework with a distributed data service model. However, the fast mobility and vast moving area of vehicles lead to significant challenges on the efficiency and scalability of the underlying NDN backbone in the framework. To handle this issue, we propose a novel hierarchical hyperbolic NDN architecture (H2NDN). By taking advantage of the location dependency of CV applications, we design a hierarchical router topology and the associated namespace. This enables Interest packets from CV applications to be forwarded towards Data (cache) holders efficiently through static FIB configuration. However, the resultant hierarchical routing can easily overload high-level routers. Thus, we further integrate hyperbolic routing into the architecture through carefully designed hyperbolic planes in the hierarchical topology. As a result, the load is better balanced to ensure the overall scalability. Finally, extensive NDNsim based simulation with real traffic data proves the efficiency and scalability of the proposed H2NDN architecture.
互联汽车(CV)最近成为一种新的计算和网络范式,可以实现许多有益的CV应用。在本文中,我们认为命名数据网络(NDN)与CV应用的需求有很好的协同作用。这促使我们提出了一个基于NDN的分布式数据服务模型的CV应用框架。然而,车辆的快速移动性和广阔的移动区域对框架中底层NDN骨干网的效率和可扩展性提出了重大挑战。为了解决这个问题,我们提出了一种新的分层双曲NDN架构(H2NDN)。通过利用CV应用的位置依赖性,我们设计了一个分层路由器拓扑和相关的命名空间。这使得来自CV应用程序的兴趣数据包可以通过静态FIB配置有效地转发给数据(缓存)持有者。然而,由此产生的分层路由很容易使高级路由器过载。因此,我们通过在分层拓扑中精心设计的双曲平面,进一步将双曲路由集成到体系结构中。因此,负载得到了更好的平衡,以确保整体的可伸缩性。最后,利用真实流量数据进行了大量基于NDNsim的仿真,验证了所提出的H2NDN架构的效率和可扩展性。
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引用次数: 1
Virtual Wires: Rethinking WiFi networks 虚拟线路:重新思考WiFi网络
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8846977
Yudong Yang, Yuming Jiang, V. Misra, D. Rubenstein
WiFi is the dominant means for home Internet access, yet is frequently a performance bottleneck. Without reliable, satisfactory performance at the last hop, end-to-end quality of service (QoS) efforts will fail. Three major reasons for WiFi bottlenecking performance are its: 1) inherent wireless channel characteristics, 2) approach to access control of the shared broadcast channel, and 3) impact on transport layer protocols, such as TCP, that operate end-to-end, and over-react to the loss or delay caused by the single WiFi link. In this paper, we leverage the philosophy of centralization in modern networking and present our cross layer design to address the problem. Specifically, we introduce centralized control at the point of entry/egress into the WiFi network. Based on network conditions measured from buffer sizes, airtime and throughput, flows are scheduled to the optimal utility. Unlike most existing WiFi QoS approaches, our design only relies on transparent modifications, requiring no changes to the network (including link layer) protocols, applications, or user intervention. Through extensive experimental investigation, we show that our design significantly enhances the reliability and predictability of WiFi performance, providing a “virtual wire”-like link to the targeted application.
WiFi是家庭上网的主要方式,但经常成为性能瓶颈。如果在最后一跳没有可靠的、令人满意的性能,端到端服务质量(QoS)的努力将会失败。造成WiFi性能瓶颈的主要原因有三个:1)固有的无线信道特性;2)共享广播信道的访问控制方法;3)对传输层协议(如TCP)端到端操作的影响,对单个WiFi链路造成的丢失或延迟反应过度。在本文中,我们利用现代网络中的集中化哲学,并提出我们的跨层设计来解决这个问题。具体来说,我们在WiFi网络的入口/出口引入集中控制。根据从缓冲区大小、通话时间和吞吐量测量的网络条件,将流量调度到最佳效用。与大多数现有的WiFi QoS方法不同,我们的设计只依赖于透明的修改,不需要改变网络(包括链路层)协议、应用程序或用户干预。通过广泛的实验研究,我们表明我们的设计显著提高了WiFi性能的可靠性和可预测性,为目标应用程序提供了类似“虚拟线”的链接。
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引用次数: 2
Towards Energy Efficient LoRa Multihop Networks 迈向节能LoRa多跳网络
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8847137
M. Bezunartea, Roald Van Glabbeek, An Braeken, J. Tiberghien, K. Steenhaut
We propose an adaptation of the well-known Time Slotted Channel Hopping (TSCH) Medium Access Control (MAC) protocol, which was initially specified for IEEE 802.15.4 based networks, for operation over the LoRa PHY layer. Thanks to its deterministic nature, multiple concurrent communications can be handled, while reducing channel collision and ensuring reliability in a power-efficient manner. The proposed solution was implemented in the Contiki-NG operating system and tested on real motes.
我们提出了一种著名的时隙信道跳频(TSCH)介质访问控制(MAC)协议的改编,该协议最初是为基于IEEE 802.15.4的网络指定的,用于在LoRa物理层上操作。由于其确定性特性,可以处理多个并发通信,同时减少信道冲突并以节能的方式确保可靠性。提出的解决方案在Contiki-NG操作系统中实现,并在实际环境中进行了测试。
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引用次数: 15
Resource optimization in Visible Light Communication for Internet of Things 面向物联网的可见光通信资源优化
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8846992
Sifat Ibne Mushfique, Akash Dey, Ahmad Alsharoa, M. Yuksel
In the modern day, there is a serious spectrum crunch in the legacy radio frequency (RF) band, for which visible light communication (VLC) can be a promising option. VLC is a short-range wireless communication variant which uses the visible light spectrum. In this paper, we are using a VLC-based architecture for providing scalable communications to Internet-of-Things (IoT) devices where a multi-element hemispherical bulb is used that can transmit data streams from multiple light emitting diode (LED) boards. The essence of this architecture is that it uses a Line-of-Sight (LoS) alignment protocol that handles the handoff issue created by the movement of receivers inside a room. We start by proposing an optimization problem aiming to minimize the total consumed energy emitted by each LED taking into consideration the LEDs’ power budget, users’ perceived quality-of-service, LED-user associations, and illumination uniformity constraints. Then, because of the non-convexity of the problem, we propose to solve it in two stages: (1) We design an efficient algorithm for LED-user association for fixed LED powers, and (2) using the LED-user association, we find an approximate solution based on Taylor series to optimize the LEDs’ power. We devise a heuristic solution based on this approach. Finally, we illustrate the performance of our method via simulations.
在现代,传统射频(RF)频段存在严重的频谱紧张,可见光通信(VLC)可能是一个有前途的选择。VLC是一种使用可见光光谱的短距离无线通信变体。在本文中,我们使用基于vlc的架构为物联网(IoT)设备提供可扩展的通信,其中使用多元素半球灯泡,可以传输来自多个发光二极管(LED)板的数据流。这种体系结构的本质是,它使用视距(LoS)对齐协议来处理由房间内接收器的移动所产生的切换问题。我们首先提出了一个优化问题,旨在考虑LED的功率预算、用户感知的服务质量、LED-用户关联和照明均匀性约束,使每个LED发出的总消耗能量最小化。然后,由于问题的非凸性,我们提出分两个阶段来解决它:(1)我们设计了一个有效的LED-用户关联算法,用于固定LED功率;(2)利用LED-用户关联,我们找到一个基于泰勒级数的近似解来优化LED的功率。我们基于这种方法设计了一种启发式解决方案。最后,通过仿真验证了该方法的性能。
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引用次数: 3
LANMAN 2019 Cover Page LANMAN 2019封面
Pub Date : 2019-07-01 DOI: 10.1109/lanman.2019.8847101
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引用次数: 0
Virtualized Heterogeneous 5G Cloud-RAN deployment over Redundant Wireless Links 冗余无线链路虚拟化异构5G Cloud-RAN部署
Pub Date : 2019-07-01 DOI: 10.1109/LANMAN.2019.8846995
N. Makris, Christos Zarafetas, Konstantinos Choumas, P. Flegkas, T. Korakis
5G networks bring increased flexibility for the operator at different levels. On one side, RAN disaggregation based on the Cloud-RAN concept allows the instantiation of base stations in an area based on demand, whereas on the other side NFV-MANO orchestration brings effortless delivery of services deployed over distributed infrastructure. In this paper, we demonstrate a disaggregated heterogeneous CloudRAN, consisting of cellular and WiFi infrastructure, deployed through the Open Source MANO orchestrator in the distributed infrastructure of a testbed. Through a pair of mmWave and WiFi redundant links, we backhaul the RAN and in case of a broken link, seamlessly switch technologies without affecting the traffic delivered to the end-user.
5G网络为运营商在不同层面带来更大的灵活性。一方面,基于Cloud-RAN概念的RAN分解允许根据需求在一个区域内实例化基站,而另一方面,NFV-MANO编排使部署在分布式基础设施上的服务轻松交付。在本文中,我们演示了一个分解的异构CloudRAN,由蜂窝和WiFi基础设施组成,通过开源MANO编排器部署在测试平台的分布式基础设施中。通过一对毫米波和WiFi冗余链路,我们回程RAN,在链路中断的情况下,无缝切换技术,而不会影响交付给最终用户的流量。
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引用次数: 1
期刊
2019 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN)
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