Better performance of mobile devices in time-frequency dispersive channels using well-localized bases

  • Authors:

  • Dmitry Petrov;Timo Hämäläinen

  • Affiliations:

  • Department of Mathematical Information Technology, University of Jyväskylä, Jyväskylä, Finland;Department of Mathematical Information Technology, University of Jyväskylä, Jyväskylä, Finland

  • Venue:
  • NEW2AN'11/ruSMART'11 Proceedings of the 11th international conference and 4th international conference on Smart spaces and next generation wired/wireless networking
  • Year:
  • 2011

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Abstract

The main aim of this paper is to show on the conceptual level the practical and commercial benefits of signal construction and processing technology based on orthogonal frequency and time domains multiplexing (OFTDM). This technology utilizes mathematical framework of special orthogonal bases with the best time-frequency localization. Higher spectral and energy efficiency of telecommunication systems together with robustness against complex realistic channel conditions are achieved. In particular, the level of interference between subcarrier channels in time and in frequency domain is minimized. This approach can have wide implementation in wideband mobile networks (WiMAX, LTE), digital television (DVB-T/H) and other telecommunication systems.