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Este fórum interativo de um dia examinará os requistiro por trás das exigências de espectro para 5G nas diferentes faixas de freqüência que serão necessárias para atender à estas várias tecnologias.
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Strategic choice and broadband divergence in the transition to next generation networks: Evidence from Canada and the U.S.

This article investigates how infrastructure competition among broadband network infrastructure operators in Canada and the U.S. has influenced their incentives to increase fixed broadband connection speeds and invest in next generation fiber-to-the-premises (FTTP) technologies. The evolution of measured broadband speeds since the late 2000s documents growing differences in the incentives of dominant broadband operators to respond to demand for higher speed connectivity by increasing connectivity speeds they deliver to their customers.

A Question of Scarcity: Spectrum and Canada's Urban Core

This article uses a case study of urban Canada to explore the contentious issue of spectrum scarcity. Drawing upon infrastructure studies, this article argues for more critical approaches to this essential element of contemporary communi- cations. The first part of the article explores positions of various actors in the antagonistic debate regarding spectrum scarcity in the lead up to the Canadian 700  MHz spectrum auction, held in 2014. The second part of the article provides unique empirical data for spectrum traffic on licensed frequencies in a busy urban location.

Towards unlicensed cellular networks in TV white spaces

In this paper we study network architecture for unlicensed cellular networking for outdoor coverage in TV white spaces. The main technology proposed for TV white spaces is 802.11af, a Wi-Fi variant adapted for TV frequencies. However, 802.11af is originally designed for improved indoor propagation. We show that long links, typical for outdoor use, exacerbate known Wi-Fi issues, such as hidden and exposed terminal, and significantly reduce its efficiency. Instead, we propose CellFi, an alternative architecture based on LTE.

Burger & Masonta: TV white space for South Africa

The demand for radio spectrum has continued to grow in recent years. Fortunately, technology has continued to evolve. Modern wireless devices use frequencies up to perhaps 10 GHz, with specialised microwave systems now operating as high as the E-band (around 80 GHz). Even higher frequencies, into the optical band, are being contemplated. This article provides background to the recent developments in policy formulation for TV whitespace wideband networks in South Africa.
Paper by Chris Burger and Dr. Moshe Masonta, CSIR Meraka Institute, attached in PDF.

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