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      Coded-reference ultra-wideband systems

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      Author
      Gezici, Sinan
      Date
      2008-09
      Source Title
      Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008
      Pages
      117 - 120
      Language
      English
      Type
      Conference Paper
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      Abstract
      Transmitted-reference (TR) and frequency-shifted reference (FSR) ultra-wideband (UWB) systems employ pairs of reference and data signals, which are shifted in the time and frequency domains, respectively, to facilitate low-to-medium data rate communications without the need for complex channel estimation and template signal generation. On the other hand, the recently proposed coded-reference (CR) UWB systems provide orthogonalization of the reference and data signals in the code domain, which has advantages in terms of performance and/or implementation complexity. In this paper, CR UWB systems are investigated. First, it is shown that a CR UWB system can be considered as a generalized non-coherent pulse-position modulated system. Then, an optimal receiver according to the Bayes decision rule is derived for CR UWB systems. In addition, the asymptotic optimality properties of the conventional CR UWB receivers are investigated. Finally, simulation results are presented to compare the performance of the optimal and conventional CR UWB receivers. ©2008 IEEE.
      Keywords
      Bayes decision rule
      Coded-reference (CR)
      Frequency-shifted reference (FSR)
      Transmitted-reference (TR)
      Ultra-wideband (UWB)
      Channel estimation
      Frequency estimation
      Radio receivers
      Signal generators
      Signal receivers
      Telecommunication systems
      Wireless telecommunication systems
      Broadband networks
      Permalink
      http://hdl.handle.net/11693/26825
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/ICUWB.2008.4653430
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      • Department of Electrical and Electronics Engineering 3524
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