Nonlinear distortion reduction for the improvement of the BER performance in OFDM communication systems

Heung Gyoon Ryu, Cheng Xiang Wang, Sang Burm Ryu

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

Abstract

Orthogonal frequency division multiplexing (OFDM) has been used widely in many communication systems. However, the major drawback of OFDM is the high peak-to-average-power ratio (PAPR) which results in the bit error rate (BER) performance degradation in nonlinear environments. In this paper, we introduce a new phase weighting method to reduce the nonlinear distortion of OFDM signals in the nonlinear high power amplifier, which is different from the well-known PAPR reduction method. Especially, the proposed method is based on the nonlinear distortion reduction criterion rather than the conventional PAPR reduction criterion so that we can improve the BER performance more effectively. The simulation results show that the BER performance of the OFDM system using the proposed method is better than that of the ordinary OFDM and other OFDM systems using the PAPR reduction criterion. © 2007 IEEE.

Original languageEnglish
Title of host publicationISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
Pages67-71
Number of pages5
DOIs
Publication statusPublished - 2007
EventISCIT 2007 - 2007 International Symposium on Communications and Information Technologies - Sydney, Australia
Duration: 16 Oct 200719 Oct 2007

Conference

ConferenceISCIT 2007 - 2007 International Symposium on Communications and Information Technologies
CountryAustralia
CitySydney
Period16/10/0719/10/07

Keywords

  • Inter-modulation distortion
  • Nonlinear distortion
  • OFDM
  • PAPR reduction
  • SPW

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    Ryu, H. G., Wang, C. X., & Ryu, S. B. (2007). Nonlinear distortion reduction for the improvement of the BER performance in OFDM communication systems. In ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings (pp. 67-71) https://doi.org/10.1109/ISCIT.2007.4391986