Pulsed multi-band mimo for UWB systems

  • Craig J. Mitchell*
  • , Pedro M. Crespo
  • , Javier Del Ser
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper provides a solid mathematical framework for pulsed multiband MIMO UWB systems. In this regard a novel multiple-input multiple-output (MIMO) technique for pulse based UWB systems is proposed that exploits multi-band UWB signals for improved performance. Each transmit antenna utilizes a different band for the transmission of the signals. A RAKE receiver is employed that captures energy from sequences transmitted from L transmit antennas at M receive antennas for each of K resolved multipath components. Higher gains in diversity per resolved multipath are achieved with the proposed system than in previously considered zero forced MIMO systems [1]resulting in significant performance enhancement. Diversity gain per path is found to be M for the proposed system as opposed to M-L+1 for the zero forcing alternative. Less antennas and/or less combined RAKE paths are therefore required for a certain level of performance. The advantage of utilizing such multiband signaling in a MIMO system are evident from simulated and theoretical results of the system in a simple practical lognormal fading channel developed for the theoretical analysis. Analytical error expressions are also found for the systems presented in this channel model.

Original languageEnglish
Title of host publication15th European Signal Processing Conference, EUSIPCO 2007 - Proceedings
Pages2030-2034
Number of pages5
Publication statusPublished - 2007
Externally publishedYes
Event15th European Signal Processing Conference, EUSIPCO 2007 - Poznan, Poland
Duration: 3 Sept 20077 Sept 2007

Publication series

NameEuropean Signal Processing Conference
ISSN (Print)2219-5491

Conference

Conference15th European Signal Processing Conference, EUSIPCO 2007
Country/TerritoryPoland
CityPoznan
Period3/09/077/09/07

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