Results 341 to 350 of about 3,863,163 (394)
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Wireless local loop radio systems
Computer Networks, 1999Wireless local loop radio is expected to become a widely accepted technology for rapid access to network infrastructure by remote locations. Characteristics of a wireless local loop system are partially different from those in the mobile cellular system and therefore their design and planning require different considerations.
Nicolae Cotanis, Bijan Jabbari
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Distributionally Robust Radio Frequency Localization
IEEE Transactions on Signal and Information Processing over Networks, 2019We consider the problem of estimating the location of an RF-device using observations such as received signal strengths, generated according to an uncertain distribution from a set of transmitters with known locations. We present a distributionally robust formulation of the localization problem that explicitly takes into account the uncertainty in the ...
Nachikethas A. Jagadeesan +1 more
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mmTrack: Passive Multi-Person Localization Using Commodity Millimeter Wave Radio
IEEE Conference on Computer Communications, 2020Passive human localization and tracking using RF signals have been studied for over a decade. Most of the existing solutions, however, can only track a single moving subject due to the coarse multipath resolvability limited by bandwidth and antenna ...
Chen-Shu Wu +3 more
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DECT technology for radio in the local loop
Proceedings of IEEE Vehicular Technology Conference (VTC), 2002There is increasing interest in radio in the local loop (RLL) applications due to technology advancements and the liberalisation of the telecommunications markets. The paper describes the properties of DECT RLL applications. DECT offers toll quality digital speech, voice band transparency and ISDN services. All user information is encrypted.
Dag Åkerberg +3 more
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Indoor Localization With Multi-Beam of 5G New Radio Signals
IEEE Transactions on Wireless CommunicationsIn this work, we investigate the property of the multi-beam of 5G new radio (NR) signals for indoor localization. Specifically, the 5G NR signals are firstly sampled by a self-developed software-defined receiver, and the multi-beam is extracted via ...
Xin Zhou +3 more
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Local radio in Switzerland: The limits of localism
Journal of Broadcasting & Electronic Media, 1991Switzerland introduced local radio on an experimental basis in 1983. When the experimental period ended in 1988, much had been learned about the ways in which radio might and might not reflect local cultures and about the problems of regulating the commercial aspects of a medium that until 1 983 had been exclusively noncommercial.
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Radio Foundation Models: Pre-training Transformers for 5G-based Indoor Localization
International Conference on Indoor Positioning and Indoor NavigationArtificial Intelligence (AI)-based radio fingerprinting (FP) outperforms classic localization methods in propagation environments with strong multipath effects. However, the model and data orchestration of FP are time-consuming and costly, as it requires
Jonathan Ott +4 more
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Programmed Learning and Educational Technology, 1974
In this article the development of Local Radio is traced from the case put by the BBC to the Pilkington Committee at the opening of the first twenty of the proposed forty stations. The aim of the service—to run a local radio service on the shared experience of people living together in the same community—is available to only half the nation.
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In this article the development of Local Radio is traced from the case put by the BBC to the Pilkington Committee at the opening of the first twenty of the proposed forty stations. The aim of the service—to run a local radio service on the shared experience of people living together in the same community—is available to only half the nation.
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Radio Planning of Wireless Local Area Networks
IEEE/ACM Transactions on Networking, 2007In this paper we propose mathematical models to tackle the WLAN planning problem. Our approach aims at maximizing network efficiency by taking into account the inter-AP domain interference and the access mechanism. Both the single-channel and the multiple-channel WLAN planning problems are considered.
BOSIO, SANDRO +2 more
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Principle of Locality and Analysis of Radio Occultation Data
IEEE Transactions on Geoscience and Remote Sensing, 2013A fundamental principle of local interaction of radio waves with a refractive spherical medium is formulated and illustrated using the radio occultation (RO) method of remote sensing of the atmosphere and the ionosphere of the Earth and the planets. In accordance with this principle, the main contribution to variations of the amplitude and the phase of
Alexander G. Pavelyev +7 more
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