Rake Receiver Based on Bit Error Rate of Training Sequence Duration for Underwater Acoustic Communication

수중음향통신을 위한 훈련 신호 구간의 비트 오차율에 기반한 레이크 수신기

  • Son, Ji-hong (Department of Radio Communication Engineering, Korea Maritime and Ocean University) ;
  • Kim, Ki-man (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
  • Received : 2016.02.19
  • Accepted : 2016.03.18
  • Published : 2016.05.31


In the underwater acoustic communication channels, a multipath reflection becomes the cause of obstacle. To solve this problem, a rake receiver has been required for which one could take the time diversity. However, there is a concern about using incorrect path to recover signals with a high weighting value as underwater acoustic communication channels have severe time-variant property. In order to prevent these problem, a rake receiver is proposed which is based on BER(bit error rate) train sequence duration. The performance is evaluated through lake trials; there are three methods that are a proposed rake receiver, a conventional rake receiver, and a non-rake receiver. As a result, the number of bit errors in the proposed rake receiver, that of bit errors in the conventional rake receiver, and that of bit errors in the non-rake receiver is 8, 45, and 72, respectively.


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