White space networking with wi-fi like connectivity

By Paramvir Victor Bahl, Ranveer Chandra, Thomas Moscibroda, Rohan Murty, Matt Welsh. Conference on Applications, Technologies, Architectures, and Protocols for Computer Communication, 2009

470 citations recorded by the source corpus.

Networking over UHF white spaces is fundamentally different from conventional Wi-Fi along three axes: spatial variation, temporal variation, and fragmentation of the UHF spectrum. Each of these differences gives rise to new challenges for implementing a wireless network in this band. We present the design and implementation of Net7, the first Wi-Fi like system constructed on top of UHF white spaces. Net7 incorporates a new adaptive spectrum assignment algorithm to handle spectrum variation and fragmentation, and proposes a low overhead protocol to handle temporal variation. builds on a simple technique, called SIFT, that reduces the time to detect transmissions in variable channel width systems by analyzing raw signals in the time domain. We provide an extensive evaluation of the system in terms of a prototype implementation and detailed experimental and simulation results.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/9435dfaad3cbb022e427d93c42f53adde15b7419

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In Computer Networks and Communications

In Electrical and Electronic Engineering

Citations in the corpus

Spectrum Decision in Cognitive Radio Networks: A Survey (2013, background): “In [64], a spectrum assignment algorithm for managing variable channel width is proposed.”
Efficient Multi-User Computation Offloading for Mobile-Edge Cloud Computing (2015, background): “…relevant to the scenario that some media access control protocol such as CSMA is implemented such that users content to capture the channel for data packet transmission for a long period (e.g., hundreds of milliseconds or several seconds) in the WiFi-like networks (e.g., White-Space Network [33]).”
Achieving single channel, full duplex wireless communication (2010, background): “In cognitive radio technologies such as WhiteFi [2], the unlicensed (secondary) users are allowed to use a spectrum only if the licensed (primary) users are not using it.”
Security and Privacy in Smart Farming: Challenges and Opportunities (2020, background): “The farm adopts a two-layer hybrid network: a layer based on TV White Spaces [40] technology for connectivity over long range which connects the farmer’s home Internet connection to IoT base stations on the farm, and a layer based on Wi-Fi technology which connects smart sensors to the IoT base…”
FarmBeats: An IoT Platform for Data-Driven Agriculture (2017, background): “Cost: The TVWS client radios cost $200,4 and there are no additional data charges, than the farmer’s existing internet connection.”
Cognitive Radio for Smart Grids: Survey of Architectures, Spectrum Sensing Mechanisms, and Networking Protocols (2016, background): “WhiteFi is similar to WiFi, however , WhiteFi exploits white spaces in the ultra high frequency (UHF) band, which includes the TVWS.”