Proceedings of the 21st Annual International Conference on Mobile Computing and Networking最新文献_第8页

Demo: Platform for Collecting Data From Urban Sensors Using Vehicular Networking 演示:利用车载网络从城市传感器收集数据的平台

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2789169

P. Santos, Tânia Calçada, Diogo Guimarães, T. Condeixa, S. Sargento, Ana Aguiar, J. Barros

引用次数: 9

Poster: Visible Light Communication in the Dark 海报:黑暗中的可见光通信

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2795181

Tian Zhao, A. Campbell, Xia Zhou

引用次数: 6

Poster: Towards Encrypted Query Processing for the Internet of Things 海报:面向物联网的加密查询处理

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2795172

Hossein Shafagh, Anwar Hithnawi, Andreas Droescher, S. Duquennoy, Wen Hu

引用次数: 28

Demo: OpenVLC1.0 Platform for Research in Visible Light Communication Networks 演示:OpenVLC1.0可见光通信网络研究平台

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2789173

Qing Wang, Shengrong Yin, O. Gnawali, D. Giustiniano

{"title":"Demo: OpenVLC1.0 Platform for Research in Visible Light Communication Networks","authors":"Qing Wang, Shengrong Yin, O. Gnawali, D. Giustiniano","doi":"10.1145/2789168.2789173","DOIUrl":"https://doi.org/10.1145/2789168.2789173","url":null,"abstract":"Built around a cost-effective embedded Linux platform, OpenVLC is an open source project (www.openvlc.org) for research in Visible Light Communication (VLC) Networks. In this work, we introduce and demonstrate the OpenVLC1.0 platform, a flexible, software-defined, and low-cost research platform. OpenVLC1.0 consists of a simple electronic design, and a new driver of the Linux operating system that implements the MAC, part of the PHY layers and it offers an interface to Internet protocols. The electronics of OpenVLC implement a flexible optical front-end consisting of commodity low- and high-power Light Emitting Diodes (LEDs), photodiodes (PDs), and ancillary electronic circuitry. In order to quickly start playing with VLC Networks, we have designed and developed a printed circuit board (OpenVLC1.0 cape). The cape can be plugged into the main embedded Beaglebone board. Researchers can then swiftly build PHY and MAC protocols using the software implementation (OpenVLC1.0 driver), and prototype innovative solutions in realistic network setups. In this demo, we show that OpenVLC1.0 can switch between different MAC protocols, it can choose different optical channel for data transmission and reception, and it can be employed jointly with standard TCP/IP diagnostic tools.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114539089","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: 5

Poster: Evaluating Android Applications with Multipath TCP 海报:评估Android应用程序与多路径TCP

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2795165

Q. D. Coninck, Matthieu Baerts, Benjamin Hesmans, O. Bonaventure

{"title":"Poster: Evaluating Android Applications with Multipath TCP","authors":"Q. D. Coninck, Matthieu Baerts, Benjamin Hesmans, O. Bonaventure","doi":"10.1145/2789168.2795165","DOIUrl":"https://doi.org/10.1145/2789168.2795165","url":null,"abstract":"Smartphones are the most popular mobile multihomed devices. End-user expects that thanks to their WiFi and cellular interfaces, they are able to seamlessly use all available networks. Unfortunately, reality tells us that seamless coexistence between cellular and WiFi is not as simple as what the user expect. Several cellular/WiFi coexistence technologies have been proposed during the last years. Some of them have been deployed. Recently, Multipath TCP received a lot of attention when it was selected by Apple to support its voice recognition (Siri) application. As of this writing, Siri is the only deployed smartphone application that uses Multipath TCP. and there is no public information about the benefits of using Multipath TCP with it. Multipath TCP is a TCP extension that allows to send data from one end-to-end connection over different paths. On a smartphone, Multipath TCP allows the applications to simultaneously send and receive data over both WiFi and cellular interfaces. It achieves this objective by establishing one TCP connection, called subflow, over each interface. Once the subflows have been established, data can be sent over any of the subflows. Researchers have analyzed the performance of Multipath TCP in such hybrid networks. However, these analyses have been performed with bulk transfers between laptops and servers. As of this writing, no detailed analysis of the performance of real smartphone applications with Multipath TCP has been published. We fill this gap in this paper by proposing a framework that automates user actions on Android smartphone applications to perform network measurements. We use it to analyze how eight popular smartphone applications interact with Multipath TCP.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117213356","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: 14

Poster: NLOS-aware Localization Based on Phase Shift Measurements 海报:基于相移测量的nlos感知定位

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2795163

Yannic Schröder, Georg von Zengen, L. Wolf

引用次数: 3

Recitation: Rehearsing Wireless Packet Reception in Software 复习课:在软件中演练无线分组接收

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2790126

Zhenjiang Li, Yaxiong Xie, Mo Li, K. Jamieson

{"title":"Recitation: Rehearsing Wireless Packet Reception in Software","authors":"Zhenjiang Li, Yaxiong Xie, Mo Li, K. Jamieson","doi":"10.1145/2789168.2790126","DOIUrl":"https://doi.org/10.1145/2789168.2790126","url":null,"abstract":"This paper presents Recitation, the first software system that uses lightweight channel state information (CSI) to accurately predict error-prone bit positions in a packet so that applications atop the wireless physical layer may take the best action during subsequent transmissions. Our key insight is that although Wi-Fi wireless physical layer operations are complex, they are deterministic. This enables us to rehearse physical-layer operations on packet bits before they are transmitted. Based on this rehearsal, we calculate a hidden parameter in the decoding process, called error event probability (EVP). EVP captures fine-grained information about the receiver's convolutional or LDPC decoder, allowing Recitation to derive precise information about the likely fate of every bit in subsequent packets, without any wireless channel training. Recitation is the first system of its kind that is both software-implementable and compatible with the existing 802.11 architecture for both SISO and MIMO settings. We experiment with commodity Atheros 9580 Wi-Fi NICs to demonstrate Recitation's utility with three representative applications in static, mobile, and interference-dominated scenarios. We show that Recitation achieves 33.8% and 16% average throughput gains for bit-rate adaptation and partial packet recovery, respectively, and 6 dB PSNR quality improvement for unequal error protection-based video.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123418791","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

EcoDrive: A Mobile Sensing and Control System for Fuel Efficient Driving EcoDrive:一种用于节能驾驶的移动传感和控制系统

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2790111

Lei Kang, Bozhao Qi, D. Janecek, Suman Banerjee

{"title":"EcoDrive: A Mobile Sensing and Control System for Fuel Efficient Driving","authors":"Lei Kang, Bozhao Qi, D. Janecek, Suman Banerjee","doi":"10.1145/2789168.2790111","DOIUrl":"https://doi.org/10.1145/2789168.2790111","url":null,"abstract":"This paper introduces EcoDrive, a fuel consumption sensing and control system for modern vehicles, implemented in an embedded platform, to improve fuel efficiency and reduce carbon emissions. EcoDrive senses vehicle dynamics through the standard vehicle On-board diagnostics (OBD) port and models various vehicle forces, i.e., propulsion, drivetrain loss, wind resistance and grade resistance, as functions of instant fuel consumption. By sensing vehicular speed and controlling air/fuel injection rate in real time, EcoDrive can adjust speed carefully to improve fuel efficiency. We have collected more than 10,000 miles of driving traces from 12 different vehicles to build models of vehicle dynamics. Based on the models, a prototype of EcoDrive is implemented in an off-the-shelf embedded platform. The prototype is installed on a regular vehicle and evaluated through test drives of more than 100 miles across both urban and highway environments. In comparison with human drivers, EcoDrive achieves an average of 20% higher fuel efficiency in urban road segments and 30% higher fuel efficiency on highways.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129016010","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: 28

EchoTag: Accurate Infrastructure-Free Indoor Location Tagging with Smartphones EchoTag:智能手机精确的室内定位标签

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2790102

Yu-Chih Tung, K. Shin

{"title":"EchoTag: Accurate Infrastructure-Free Indoor Location Tagging with Smartphones","authors":"Yu-Chih Tung, K. Shin","doi":"10.1145/2789168.2790102","DOIUrl":"https://doi.org/10.1145/2789168.2790102","url":null,"abstract":"We propose a novel mobile system, called EchoTag, that enables phones to tag and remember indoor locations without requiring any additional sensors or pre-installed infrastructure. The main idea behind EchoTag is to actively generate acoustic signatures by transmitting a sound signal with a phone's speakers and sensing its reflections with the phone's microphones. This active sensing provides finer-grained control of the collected signatures than the widely-used passive sensing. For example, because the sensing signal is controlled by EchoTag, it can be intentionally chosen to enrich the sensed signatures and remove noises from useless reflections. Extensive experiments show that EchoTag distinguishes 11 tags at 1cm resolution with 98% accuracy and maintains 90% accuracy even a week after its training. With this accurate location tagging, one can realize many interesting applications, such as automatically turning on the silent mode of a phone when it is placed at a pre-defined location/area near the bed or streaming favorite songs to speakers if it is placed near a home entertainment system. Most participants of our usability study agree on the usefulness of EchoTag's potential applications and the adequacy of its sensing accuracy for supporting these applications.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132587912","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: 125

Control Channel Design for Many-Antenna MU-MIMO 多天线MU-MIMO控制通道设计

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking Pub Date : 2015-09-07 DOI: 10.1145/2789168.2790120

Clayton W. Shepard, A. Javed, Lin Zhong

{"title":"Control Channel Design for Many-Antenna MU-MIMO","authors":"Clayton W. Shepard, A. Javed, Lin Zhong","doi":"10.1145/2789168.2790120","DOIUrl":"https://doi.org/10.1145/2789168.2790120","url":null,"abstract":"Many-antenna MU-MIMO faces a critical, previously unaddressed challenge: it lacks a practical control channel. At the heart of this challenge is that the potential range of MU-MIMO beamforming systems scales with up to the square of the number of base-station antennas once they have channel state information (CSI), whereas the range of traditional control channel operations remains constant since they take place before or during CSI acquisition. This range gap between no-CSI and CSI modes presents a critical challenge to the efficiency and feasibility of many-antenna base stations, as their operational range is limited to the no-CSI mode. We present a novel control channel design for many-antenna MU-MIMO, Faros, that allows the number of base-station antennas to scale up to 100s in practice. Faros leverages a combination of open-loop beamforming and coding gains to bridge the range gap between the CSI and no-CSI modes. Not only does Faros provide an elegant and efficient control channel for many-antenna MU-MIMO, but on a more fundamental level it exposes flexible, fine-grained, control over space, time, and code resources, which enables previously impossible optimizations. We implement our design on the Argos many-antenna base station and evaluate its performance in bridging the range gap, synchronization, and paging. With 108 antennas, Faros can provide over 40 dB of gain, which enables it to function reliably at over 250 meters outdoors with less than 100 μW of transmit power per antenna, 10 mW total, at 2.4 GHz.","PeriodicalId":424497,"journal":{"name":"Proceedings of the 21st Annual International Conference on Mobile Computing and Networking","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132016400","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: 32