New PAPR Reduction in an OFDM System Using Hybrid of PTS-CAPPR Methods with GA Coded Side Information Technique

• PRADABPET Chusit

  Phranakhon Si Ayutthaya Rajabhat University

• YOSHIZAWA Shingo

  Hokkaido University

• MIYANAGA Yoshikazu

  Hokkaido University

• DEJHAN Kobchai

  Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang (KMITL)

Abstract

In this paper, we propose a new PAPR reduction by using the hybrid of partial transmit sequences (PTS) and cascade adaptive peak power reduction (CAPPR) methods with side information (SI) technique coded by genetic algorithm (GA). These methods are used in an Orthogonal Frequency Division Multiplexing (OFDM) system. The OFDM employs orthogonal sub-carriers for data modulation. These sub-carriers unexpectedly present a large peak to average power ratio (PAPR) in some cases. A proposed reduction method realizes both the advantages of PTS and CAPPR at the same time. In order to obtain the optimum condition on PTS for PAPR reduction, a quite large calculation cost is demanded and thus it is impossible to obtain the optimum PTS in a short time. In the proposed method, by using the pseudo-optimum condition based on a GA coded SI technique, the total calculation cost becomes drastically reduced. In simulation results, the proposed method shows the improvement on PAPR and also reveals the high performance on bit error rate (BER) of an OFDM system.

Journal

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E92-A (11), 2830-2836, 2009

  The Institute of Electronics, Information and Communication Engineers

Keywords

• OFDM
• PAPR
• PTS
• CAPPR
• nonlinear HPA

Details

• CRID: 1390282681286799232
• NII Article ID: 10026860932
• NII Book ID: AA10826239
• DOI: 10.1587/transfun.e92.a.2830
• ISSN: 17451337
• ISSN: 09168508
• Web Site: http://www.jstage.jst.go.jp/article/transfun/E92.A/11/E92.A_11_2830/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed