Closed-Form Derivations of ISI and MUI for Time-Reversed Ultra Wideband

نویسندگان

  • K. Popovski
  • Beata J. Wysocki
  • Tadeusz Wysocki
  • B. J. Wysocki
چکیده

Through transmitter pre-filtering, a time reversed UWB system is capable if harnessing a multipath channel to achieve temporal and spatial focusing. Unfortunately, large RMS channel delay spread leads to significant intersymbol and multiuser interference. This paper presents closed-form expressions for self and multi-user interference for a UWB system utilizing a time-reversed approach. The influence of user multiplexing codes is taken to account through incorporation of a ‘separation probability’, which characterizes a family of hopping sequences. The standardized IEEE 802.15.3a channel model is applied, and the derived performances are compared with that of a simulated time hopped time-reversed UWB system.

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تاریخ انتشار 2007