한국전자파학회:학술대회논문집 (Proceedings of the Korea Electromagnetic Engineering Society Conference)

한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지

The Performance Simulation of OFDM System Employing Hierarchical 16QAM for Image and Data Transmission in Multipath Fading Channel

  • Kwak, Jae-Min (Dept. of Telecomm & Inform. Eng., Graduate School, Hankuk Aviation University) ;
  • Ahn, Jun-Bae (Armitel CO., Ltd) ;
  • Park, Ki-Sik (Dept. of Telecomm & Inform. Eng., Graduate School, Hankuk Aviation University) ;
  • Cho, Sung-Eon (Dept. of Compute & Comm. Eng., Sunchon Natinal University) ;
  • Cho, Sung-Joon (Dept. of Telecomm & Inform. Eng., Graduate School, Hankuk Aviation University)
  • 발행 : 2000.11.01
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초록

In this paper, we have evaluated the performance of an OFDM system using hierarchical 16QAM (OFDM/HL-16QAM) for achieving high quality and high speed data and image transmission in multipath fading channel. The wireless channel for performance evaluation is assumed to include AWGN and two ray multipath fading. Through simulation we have obtained the BER performance of the system according to $E_{b}$, $N_{0}$, then compared the received image quality of proposed system with that of conventional system. From the result, it is shown that the OFDM/HL-16QAM system is more effective for data and image transmission.n.n.

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