Space-Time Coded OFDM with Low PAPR

Harish Reddy, Tolga M. Duman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations


Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems employing space-time coding have been proposed for providing high-data rate services over wireless channels. These schemes combine the advantages of space-time coding and OFDM, resulting in a spectrally efficient wideband system. However, current MIMO-OFDM systems do not consider the problem of inherent high peak to average power ratio (PAPR). In this paper, we propose a general framework for PAPR reduction for space-time coded OFDM systems. We show that with the new scheme, significantly reduced PAPRs can be obtained at the cost of a slight decrease in the spectral efficiency of the system. In particular, using trellis shaping before space-time coding, examples show that a PAPR reduction of 4.5 dB is possible.

Original languageEnglish (US)
Title of host publicationConference Record / IEEE Global Telecommunications Conference
Number of pages5
StatePublished - 2003
EventIEEE Global Telecommunications Conference GLOBECOM'03 - San Francisco, CA, United States
Duration: Dec 1 2003Dec 5 2003


OtherIEEE Global Telecommunications Conference GLOBECOM'03
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change


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