Demo: an open-source development platform for long-range UHF-connected wifi hotspots

Proceedings of the 20th annual international conference on Mobile computing and networking Pub Date : 2014-09-07 DOI:10.1145/2639108.2641753

Ryan E. Guerra, Narendra Anand, E. Knightly

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引用次数: 1

Abstract

We present a real-time software-defined radio (SDR) platform for prototyping and measuring the performance of broadband UHF radio networks operating over long distances with point-to-multipoint (PTMP) non-line-of-sight (NLOS) networks. Enabled by the Wideband UHF Radio Card (WURC), a custom high-power and frequency-flexible radio transceiver daughter-card for FPGA-based digital basebands, the 802.11 DCF-like MAC and PHY implementation is completely open source. We demonstrate a long-range PTMP NLOS network bonding several of the white space television channels available in Maui, Hawaii. Off-the-shelf client devices can use this network via 802.11a/g links implemented with the same SDR framework. The multi-carrier channel estimates and real-time MAC statistics of connected nodes in UHF and 2.4 GHz are recorded and displayed in real-time, demonstrating an unprecedented amount of flexibility in unlicensed frequency bands, enabling real-time TV-band cognitive networks and small-cell research deployments. A demonstration video is available at the following link: http://youtu.be/dTOJHRICklQ

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Demo:远程超高频wifi热点的开源开发平台

我们提出了一个实时软件定义无线电(SDR)平台，用于在点对多点(PTMP)非视距(NLOS)网络上长距离运行的宽带UHF无线电网络的原型设计和性能测量。宽带超高频无线电卡(WURC)是一种定制的用于基于fpga的数字基带的大功率和频率灵活的无线电收发器卡，它使802.11 dcf类MAC和PHY实现完全开源。我们演示了一个远程PTMP NLOS网络，结合了夏威夷毛伊岛可用的几个白色空间电视频道。现成的客户端设备可以通过使用相同SDR框架实现的802.11a/g链路使用该网络。UHF和2.4 GHz连接节点的多载波信道估计和实时MAC统计数据被实时记录和显示，在未经许可的频段上展示了前所未有的灵活性，使实时电视频段认知网络和小蜂窝研究部署成为可能。演示视频可在以下链接下载:http://youtu.be/dTOJHRICklQ

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Proceedings of the 20th annual international conference on Mobile computing and networking

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