Effects of time variant channel on a time reversal UWB system

  • Authors:

  • I. H. Naqvi;P. Besnier;G. El Zein

  • Affiliations:

  • Institute of Electronics and Telecommunications of Rennes, IETR-UMR CNRS, INSA, Rennes, France;Institute of Electronics and Telecommunications of Rennes, IETR-UMR CNRS, INSA, Rennes, France;Institute of Electronics and Telecommunications of Rennes, IETR-UMR CNRS, INSA, Rennes, France

  • Venue:
  • GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
  • Year:
  • 2009

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Abstract

Time reversal (TR) is gaining more and more attention due to its potential to simplify the receiver for an ultra-wideband communication system. The temporal and spatial focusing properties of a TR communication system allow the detection of the received signal with simple receivers. However, the transmitter system becomes complicated as perfect channel estimation is required on regular basis. However, if the TR system is robust and can resist the changes in the channel, frequency of the estimation cycles will be less resulting in an increased transmission throughput. In this paper, we study the robustness of a TR system in a time varying channel environment. Different TR characteristics are compared and the ability of a TR system to resist the varying channel is shown.