Journal ArticleDOI
Antennas and propagation for on-body communication systems
Peter Hall,Yang Hao,Yuriy I. Nechayev,Akram Alomainy,Costas Constantinou,Clive Parini,Muhammad Ramlee Kamarudin,T.Z. Salim,D.T.M. Hee,Rostyslav Dubrovka,A.S. Owadally,Wei Song,Andrea Serra,Paolo Nepa,M. Gallo,M. Bozzetti +15 more
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TLDR
Investigations into channel characterization and antenna performance at 2.45 GHz show that for many channels, an antenna polarized normal to the body's surface gives the best path gain.Abstract:
On-body communication channels are of increasing interest for a number of applications, such as medical-sensor networks, emergency-service workers, and personal communications. This paper describes investigations into channel characterization and antenna performance at 2.45 GHz. It is shown that significant channel fading occurs during normal activity, due primarily to the dynamic nature of the human body, but also due to multipath around the body and from scattering by the environment. This fading can be mitigated by the use of antenna diversity, and gains of up to 10 dB are obtained. Separation of the antenna's performance from the channel characteristics is difficult, but results show that for many channels, an antenna polarized normal to the body's surface gives the best path gain. Simulation and modeling present many challenges, particularly in terms of the problem's scale, and the need for accurate modeling of the body and its movement.read more
Citations
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References
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Antenna diversity in mobile communications
TL;DR: The mutual resistance condition offers a powerful design tool, and examples of new mobile diversity antennas are discussed along with some existing designs.
BookDOI
Fundamentals of Wearable Computers and Augumented Reality
Woodrow Barfield,Thomas Caudell +1 more
TL;DR: A trusted reference for almost 15 years, Fundamentals of Wearable Computers and Augmented Reality goes beyond smart clothing to explore user interface design issues specific to wearable tech and areas in which it can be applied.
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Specific absorption rate and temperature elevation in a subject exposed in the far-field of radio-frequency sources operating in the 10-900-MHz range
TL;DR: The exposure of a subject in the far field of radiofrequency sources operating in the 10-900-MHz range has been studied and the thermal model used, which takes into account the thermoregulatory system of the human body, has been validated through a comparison with experimental data.
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Channel model for wireless communication around human body
TL;DR: In this paper, a channel model for a wireless body area network at 400 MHz, 900 MHz and 2.4 GHz was derived and the electromagnetic wave propagation around the body was simulated with a finite-difference time-domain simulator.
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UWB for noninvasive wireless body area networks: channel measurements and results
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