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An Empirical Study on the Performance of Wireless OFDM Communications in Highly Reverberant Environments
Journal article   Open access   Peer reviewed

An Empirical Study on the Performance of Wireless OFDM Communications in Highly Reverberant Environments

Ryan Measel, Christopher S Lester, Donald J Bucci, Kevin Wanuga, Gregory Tait, Richard Primerano, Kapil R Dandekar and Moshe Kam
IEEE transactions on wireless communications, v 15(7), pp 4802-4812
Jul 2016
url
https://doi.org/10.1109/TWC.2016.2546879View
Published, Version of Record (VoR) Open

Abstract

Reverberation chambers OFDM multipath channels quadrature amplitude modulation fading Wireless communication receiving antennas SISO phase shift keying Bandwidth Apertures electromagnetic coupling Cavity resonators Delays throughput signal to noise ratio SIMO
Reverberation chambers are closed reflective spaces that can emulate highly reverberant electromagnetic environments. The electromagnetic environment is primarily determined by the size of the cavity, effective conductivity, and leakage via apertures. In this effort, we investigate the performance of wireless OFDM communications in relation to the latter two by controlling the loading of a reverberation chamber and the effective aperture into a coupled cavity. A software defined radio measurement platform was used to assess the communication performance through a selection of link-level metrics including error vector magnitude, post processing signal-to-noise ratio, and throughput. The degradation of link quality is quantified for increasingly diffuse environments, as well as the improvement when leveraging a maximal ratio combining receiver diversity scheme. The link quality was found to improve in both the reverberation chamber and the coupled cavity for larger effective apertures. This result was analyzed using a time-dependent model for RF propagation in coupled cavities.

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Web of Science research areas
Engineering, Electrical & Electronic
Telecommunications
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