Implementation of OFDM receiver using rotating circular array antenna for vehicle communications

  • Authors:

  • Hironori Ogihara;Hiroshi Yasukawa

  • Affiliations:

  • Graduate School of Information Science and Technology, Aichi Prefectural University, Nagakute, Aichi, Japan;Graduate School of Information Science and Technology, Aichi Prefectural University, Nagakute, Aichi, Japan

  • Venue:
  • SITE'12 Proceedings of the 11th international conference on Telecommunications and Informatics, Proceedings of the 11th international conference on Signal Processing
  • Year:
  • 2012

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Abstract

In high-speed mobile OFDM communication systems, the receiving characteristics are degraded badly by channel time variation. Our solution is to rotate a circular array antenna so as to decrease the speed of the receiving antenna relative to the ground. Moreover, the BER characteristics with the parameters of ISDB-T, which are a standard of Japanese digital terrestrial television broadcasting, were used in prior research to evaluate the performance of concept. Past studies indicated that the rotating circular array antenna is effective in high-speed mobile OFDM communications. However, the composition of an OFDM receiver with rotating circular array antenna was not fully elucidated. We conduct fundamental research on receiver construction. In this paper, we evaluate the performance of the OFDM receiver with rotating circular array antenna, that employs error correction decoding. Additionally, we improve the performance of rotation speed control method by using a moving average filter. Simulation results show the effectiveness of the proposed method by using the parameters of ISDB-T Mode3.