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A Low-Cost Time-Hopping Impulse Radio System for High Data Rate Transmission

Abstract

We present an efficient, low-cost implementation of time-hopping impulse radio that fulfills the spectral mask mandated by the FCC and is suitable for high-data-rate, short-range communications. Key features are (i) all-baseband implementation that obviates the need for passband components, (ii) symbol-rate (not chip rate) sampling, A/D conversion, and digital signal processing, (iii) fast acquisition due to novel search algorithms, and (iv) spectral shaping that can be adapted to accommodate different spectrum regulations and interference environments. Computer simulations show that this system can provide 110 Mbps at 7–10 m distance, as well as higher data rates at shorter distances under FCC emissions limits. Due to the spreading concept of time-hopping impulse radio, the system can sustain multiple simultaneous users, and can suppress narrowband interference effectively.

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Correspondence to Andreas F. Molisch.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Molisch, A.F., Li, Y.G., Nakache, YP. et al. A Low-Cost Time-Hopping Impulse Radio System for High Data Rate Transmission. EURASIP J. Adv. Signal Process. 2005, 683054 (2005). https://doi.org/10.1155/ASP.2005.397

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  • DOI: https://doi.org/10.1155/ASP.2005.397

Keywords and phrases

  • ultra-wideband
  • impulse radio
  • RAKE receiver
  • spectral shaping