A Time-Frequency Well-localized Pulse for Multiple Carrier Transmission

  • Authors:
  • Ralf Haas;Jean-Claude Belfiore

  • Affiliations:
  • Ecole Nationale Supérieure des Télécommunications, 46, Rue Barrault, 75634 Paris Cedex, France;Ecole Nationale Supérieure des Télécommunications, 46, Rue Barrault, 75634 Paris Cedex, France

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 1997

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Abstract

In multicarrier transmission schemes, the essential requirement on theelementary pulse or envelope function is the orthogonality with itstime-frequency shifted versions. However, the time and frequencydispersion of the mobile radio channel leads to the loss oforthogonality which produces intersymbol interference (ISI) andinterchannel interference (ICI). Therefore, another requirement on theelementary pulse has to be imposed: the good localization in time andfrequency. Based on the characteristics of the mobile radio channel, wedesign a new pulse to minimize ICI and ISI.