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Space-Time Coded OFDM with Low PAPR

  • Anand VenkataramanEmail author
  • Harish Reddy
  • Tolga M. Duman
Open Access
Research Article

Abstract

Recently the use of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems has been proposed for signaling over frequency-selective fading channels. Although various aspects of these systems have been considered in the literature, the problem of the inherent high peak-to-average power ratio (PAPR) is not examined. In this paper, we consider PAPR reduction for MIMO-OFDM systems and propose alternate low-complexity algorithms that can be used in conjunction with the trellis shaping method. We show that a PAPR reduction in the order of 4- Open image in new window can be achieved at the cost of a slight reduction in the spectral efficiency. Furthermore, we compare the trellis shaping technique with other PAPR reduction techniques such as tone reservation and partial transmit sequences.

Keywords

Information Technology Orthogonal Frequency Division Multiplex Quantum Information Fading Channel Reduction Technique 

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Copyright information

© Venkataraman et al. 2006

Authors and Affiliations

  • Anand Venkataraman
    • 1
    Email author
  • Harish Reddy
    • 1
  • Tolga M. Duman
    • 1
  1. 1.Department of Electrical EngineeringArizona State UniversityTempeUSA

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