Full length article: Code-shifted reference transceiver for impulse radio ultra-wideband systems

  • Authors:

  • Hong Nie;Zhizhang Chen

  • Affiliations:

  • Department of Industrial Technology, University of Northern Iowa, Cedar Falls, IA 50614-0178, United States;Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS B3J 2X4, Canada

  • Venue:
  • Physical Communication
  • Year:
  • 2009

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Abstract

In this paper, a novel type of transceiver for impulse radio ultra-wideband systems, the code-shifted reference transceiver, has been proposed to remove the delay element with an ultra wide bandwidth required by the transmitted reference transceiver. As compared to the frequency-shifted reference transceiver that removes the delay element through separating the reference and data pulse sequences with a group of analog carriers, the code-shifted reference transceiver separates the reference and data pulse sequences with a set of shifting and detection codes selected from Walsh codes. Therefore, the performance evaluations obtained from both theoretical analysis and computer simulations show that in conjunction with a much lower system complexity, the code-shifted reference transceiver can achieve a much better bit-to-error rate performance than the frequency-shifted reference transceiver can.