Proceedings of the 16th ACM Workshop on Hot Topics in Networks最新文献_第3页

Wi-Fly: Widespread Opportunistic Connectivity via Commercial Air Transport Wi-Fly:通过商业航空运输广泛的机会性连接

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152458

Talal Ahmad, Ranveer Chandra, Ashish Kapoor, Michael Daum, E. Horvitz

{"title":"Wi-Fly: Widespread Opportunistic Connectivity via Commercial Air Transport","authors":"Talal Ahmad, Ranveer Chandra, Ashish Kapoor, Michael Daum, E. Horvitz","doi":"10.1145/3152434.3152458","DOIUrl":"https://doi.org/10.1145/3152434.3152458","url":null,"abstract":"More than half of the world's population face barriers in accessing the Internet. A recent ITU study estimates that 2.6 billion people cannot afford connectivity and that 3.8 billion do not have access. Recent proposals for providing low-cost connectivity include fielding of drones and long-lasting balloons in the stratosphere. We propose a more economical alternative, which we refer to as Wi-Fly, that leverages existing commercial planes to provide Internet connectivity to remote regions. In Wi-Fly we enable communication between a lightweight Wi-Fi device on commercial planes and ground stations, resulting in connectivity in regions that do not otherwise have low-cost Internet connectivity. Wi-Fly leverages existing ADS-B signals from planes as a control channel to ensure that there is a strong link from the plane to the ground, and that the stations intelligently wake up and associate to the appropriate AP. For our experimentation, we have customized two airplanes to conduct measurements. Through empirical experiments with test flights and simulations, we show that Wi-Fly and its extensions have the potential to provide connectivity to the most remote regions of the world at a significantly lower cost than existing alternatives.","PeriodicalId":120886,"journal":{"name":"Proceedings of the 16th ACM Workshop on Hot Topics in Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130929486","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: 10

Granular Computing and Network Intensive Applications: Friends or Foes? 颗粒计算和网络密集型应用:是敌是友?

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152450

Arjun Singhvi, S. Banerjee, Yotam Harchol, Aditya Akella, M. Peek, Pontus Rydin

引用次数: 27

Congestion-Control Throwdown 拥塞控制的围墙

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152446

Michael Schapira, Keith Winstein

引用次数: 28

Low-Latency Routing on Mesh-Like Backbones 类网状骨干网的低延迟路由

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152453

Nikola Gvozdiev, Stefano Vissicchio, B. Karp, M. Handley

引用次数: 8

Opportunities and Challenges of Ad-based Measurements from the Edge of the Network 基于网络边缘的广告测量的机遇与挑战

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152895

Patricia Callejo, Conor Kelton, N. Vallina-Rodriguez, R. C. Rumín, Oliver Gasser, C. Kreibich, F. Wohlfart, Ángel Cuevas

{"title":"Opportunities and Challenges of Ad-based Measurements from the Edge of the Network","authors":"Patricia Callejo, Conor Kelton, N. Vallina-Rodriguez, R. C. Rumín, Oliver Gasser, C. Kreibich, F. Wohlfart, Ángel Cuevas","doi":"10.1145/3152434.3152895","DOIUrl":"https://doi.org/10.1145/3152434.3152895","url":null,"abstract":"For many years, the research community, practitioners, and regulators have used myriad methods and tools to understand the complex structure and behavior of ISPs from the edge of the network. Unfortunately, the nature of these techniques forces the researcher to find a balance between ISP-coverage, user scale, and accuracy. In this paper we present AdTag, a network measurement paradigm that leverages the opportunistic nature of online targeted advertising to measure the Internet from the edge of the network. We discuss and formalize AdTag's design space---including technical, ethical, deployability and economic factors---and its potential to analyze a wide spectrum of Internet connectivity aspects from the browser. We run several experiments to demonstrate that AdTag can be tailored towards geographic and device-based user groups, finding also several challenges to be faced in order to maximize the number of samples. In a 7-day campaign, AdTag could access more than 20K ISPs at a global scale (185 countries) using millions of edge nodes.","PeriodicalId":120886,"journal":{"name":"Proceedings of the 16th ACM Workshop on Hot Topics in Networks","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115312353","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: 10

Programmable Radio Environments for Smart Spaces 智能空间的可编程无线电环境

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152456

Allen Welkie, Longfei Shangguan, Jeremy Gummeson, Wenjun Hu, K. Jamieson

{"title":"Programmable Radio Environments for Smart Spaces","authors":"Allen Welkie, Longfei Shangguan, Jeremy Gummeson, Wenjun Hu, K. Jamieson","doi":"10.1145/3152434.3152456","DOIUrl":"https://doi.org/10.1145/3152434.3152456","url":null,"abstract":"Smart spaces, such as smart homes and smart offices, are common Internet of Things (IoT) scenarios for building automation with networked sensors. In this paper, we suggest a different notion of smart spaces, where the radio environment is programmable to achieve desirable link quality within the space. We envision deploying low-cost devices embedded in the walls of a building to passively reflect or actively transmit radio signals. This is a significant departure from typical approaches to optimizing endpoint radios and individual links to improve performance. In contrast to previous work combating or leveraging per-link multipath fading, we actively reconfigure the multipath propagation. We sketch design and implementation directions for such a programmable radio environment, highlighting the computational and operational challenges our architecture faces. Preliminary experiments demonstrate the efficacy of using passive elements to change the wireless channel, shifting frequency \"nulls\" by nine Wi-Fi subcarriers, changing the 2 x 2 MIMO channel condition number by 1.5 dB, and attenuating or enhancing signal strength by up to 26 dB.","PeriodicalId":120886,"journal":{"name":"Proceedings of the 16th ACM Workshop on Hot Topics in Networks","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114175856","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: 55

Securing Ultra-High-Bandwidth Science DMZ Networks with Coordinated Situational Awareness 利用协调态势感知保护超高带宽科学DMZ网络

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 2017-11-30 DOI: 10.1145/3152434.3152460

Vasudevan Nagendra, V. Yegneswaran, Phillip A. Porras

{"title":"Securing Ultra-High-Bandwidth Science DMZ Networks with Coordinated Situational Awareness","authors":"Vasudevan Nagendra, V. Yegneswaran, Phillip A. Porras","doi":"10.1145/3152434.3152460","DOIUrl":"https://doi.org/10.1145/3152434.3152460","url":null,"abstract":"The Science DMZ (SDMZ) is a special purpose network infrastructure that is engineered to cater to the ultra-high bandwidth needs of the scientific and high performance computing (HPC) communities. These networks are isolated from stateful security devices such as firewalls and deep packet inspection (DPI) engines to allow HPC data transfer nodes (DTNs) to efficiently transfer petabytes of data without associated bandwidth and performance bottlenecks. This paper presents our ongoing effort toward the development of more fine-grained data flow access control policies to manage SDMZ networks that service large-scale experiments with varying data sensitivity levels and privacy constraints. We present a novel system, called CoordiNetZ (CNZ), that provides coordinated security monitoring and policy enforcement for sites participating in SDMZ projects by using an intent-based policy framework for effectively capturing the high-level policy intents of non-admin SDMZ project users (e.g., scientists, researchers, students). Central to our solution is the notion of coordinated situational awareness that is extracted from the synthesis of context derived from SDMZ host DTN applications and the network substrate. To realize this vision, we present a specialized process-monitoring system and flow-monitoring tool that facilitate context-aware data-flow intervention and policy enforcement in ultra-highspeed data transfer environments. We evaluate our prototype implementation using case studies that highlight the utility of our framework and demonstrate how security policy could be effectively specified and implemented within and across SDMZ networks.","PeriodicalId":120886,"journal":{"name":"Proceedings of the 16th ACM Workshop on Hot Topics in Networks","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121484355","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: 8

Proceedings of the 16th ACM Workshop on Hot Topics in Networks 第16届ACM网络热点研讨会论文集

Proceedings of the 16th ACM Workshop on Hot Topics in Networks Pub Date : 1900-01-01 DOI: 10.1145/3152434

引用次数: 4