Skip to main content

Prefiltering-Based Interference Suppression for Time-Hopping Multiuser UWB Communications over MISO Channel

Abstract

This paper proposes a prefiltering-based scheme for pulsed ultra-wideband (UWB) system by shifting the signal processing needs from the receiver at the radio terminal (RT) to the transmitter at the fixed access point (AP) where power and computational resources are plentiful. We exploit antenna array in the transmitter of AP and take advantage of the spatial and temporal diversities to mitigate the multiuser interference (MUI) as well as preequalize the channel impulse response (CIR) of a time-hopping (TH) multiple access UWB communication system. Three prefiltering schemes are developed to meet different criteria. A simple correlation receiver is proposed at the RT to combine the desired signal stemmed from all the transmitting antennas. The performances under different scenarios are extensively evaluated over multiple-input single-output (MISO) channels.

Publisher note

To access the full article, please see PDF.

Author information

Affiliations

Authors

Corresponding author

Correspondence to Wei-Chiang Wu.

Rights and permissions

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.

Reprints and Permissions

About this article

Cite this article

Wu, WC. Prefiltering-Based Interference Suppression for Time-Hopping Multiuser UWB Communications over MISO Channel. EURASIP J. Adv. Signal Process. 2009, 617298 (2009). https://doi.org/10.1155/2009/617298

Download citation

Keywords

  • Access Point
  • Multiple Access
  • Antenna Array
  • Simple Correlation
  • Full Article