Differential (de)modulation for orthogonal bi-pulse noncoherent UWB

  • Authors:

  • Mourad Ouertani;Huilin Xu;Hichem Besbes;Liuqing Yang;Ammar Bouallegue

  • Affiliations:

  • Institut Supérieur d'Informatique, Tunisia and Laboratoire SysCom, Ecole Nationale d'Ingénieurs de Tunis, ENIT, Tunisia;Dept. of Electrical & Computer Engr., University of Florida, Gainesville, FL;Research Unit TECHTRA, Ecole Supérieure des Communications de Tunis, Tunisia;Dept. of Electrical & Computer Engr., University of Florida, Gainesville, FL;Laboratoire SysCom, Ecole Nationale d'Ingénieurs de Tunis, Tunisia

  • Venue:
  • ICC'09 Proceedings of the 2009 IEEE international conference on Communications
  • Year:
  • 2009

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Abstract

In this paper, we propose a novel noncoherent UWB (de)modulation system, which uses a pair of orthogonal pulses to convey information symbols. Same as the original noncoherent UWB [1], our approach remains operational even without timing and channel estimation. Moreover, due to the orthogonality between the received waveforms of the pulse pair, our approach results in a differential demodulator. This means that our approach does not need Viterbi decoding which is required by [1], even in the presence of timing error. Simulations are also carried out to corroborate our theoretical analysis.