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Sensors 2017, 17(5), 1043;

FM-UWB: Towards a Robust, Low-Power Radio for Body Area Networks

Integrated Circuits Lab (ICLAB), Swiss Federal Institute of Technology (EPFL), Microcity, Rue de la Maladiére 71,2000 Neuchâtel, Switzerland
Swiss Center for Electronics and Microtechnology (CSEM), Rue Jaquet-Droz 1, 2000 Neuchâtel, Switzerland
Author to whom correspondence should be addressed.
Academic Editors: Giancarlo Fortino, Hassan Ghasemzadeh, Wenfeng Li, Yin Zhang and Luca Benini
Received: 22 February 2017 / Revised: 5 April 2017 / Accepted: 29 April 2017 / Published: 6 May 2017
(This article belongs to the Special Issue Advances in Body Sensor Networks: Sensors, Systems, and Applications)
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The Frequency Modulated Ultra-Wideband (FM-UWB) is known as a low-power, low-complexity modulation scheme targeting low to moderate data rates in applications such as wireless body area networks. In this paper, a thorough review of all FM-UWB receivers and transmitters reported in literature is presented. The emphasis is on trends in power reduction that exhibit an improvement by a factor 20 over the past eight years, showing the high potential of FM-UWB. The main architectural and circuit techniques that have led to this improvement are highlighted. Seldom explored potential of using higher data rates and more complex modulations is demonstrated as a way to increase energy efficiency of FM-UWB. Multi-user communication over a single Radio Frequency (RF) channel is explored in more depth and multi-channel transmission is proposed as an extension of standard FM-UWB. The two techniques provide means of decreasing network latency, improving performance, and allow the FM-UWB to accommodate the increasing number of sensor nodes in the emerging applications such as High-Density Wireless Sensor Networks. View Full-Text
Keywords: UWB; FM; low-power; Wireless Body Area Networks (WBAN); Frequency Division Multiple Access (FDMA); multi-user; transceiver UWB; FM; low-power; Wireless Body Area Networks (WBAN); Frequency Division Multiple Access (FDMA); multi-user; transceiver

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Kopta, V.; Farserotu, J.; Enz, C. FM-UWB: Towards a Robust, Low-Power Radio for Body Area Networks. Sensors 2017, 17, 1043.

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