The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Performance analysis of an adaptive OFDM over an underwater acoustic channel

수중 음향 채널에서 적응형 OFDM의 성능 분석

  • Received : 2010.08.20
  • Accepted : 2010.10.15
  • Published : 2010.10.31
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Abstract

Such as disaster rescue in deep water, undersea exploration and monitering for environmental pollution, many applications require the acoustic communication for high data rate over underwater acoustic channel. As underwater channel is very complex and is time-varying, conventional single carrier communication has good performance. In this paper, An adaptive OFDM system is analyzed for high data rate and reliability and rubust service over UWA channels. Through the adaptive system, we show threshold switching for an adaptive algorithm.

최근 심해 해난 구조 통신, 해저 탐사와 환경오염에 대한 모니터링과 같은 서비스에서 수중 음향 채널을 통한 데이터의 전송은 고속이 요구되고 있다. 수중 음향 채널은 매우 복잡하고 지속적인 시변 특성을 가지므로 기존의 무선 통신 기술들은 좋은 성능을 나타내지 못한다. 이러한 수중 음향 채널에서 고속 전송을 제공하고 열악한 환경에 대해서 신뢰성이 있고 강건한 통신 서비스를 제공하기 위해서 본 논문에서는 적응형 OFDM 시스템의 성능을 분석한다. 이를 통해서, 음성 통신 서비스를 기준으로 수중 음향 채널에서 적절한 적응 알고리즘의 적응 스위칭을 위한 임계값을 제시한다.

Keywords

References

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