Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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A Cognitive Radio Technology for Retransmission in Cellular-Based Emergency Alert Broadcast Systems

이동통신 기반의 재난경보 방송 재전송을 위한 무선인지 기법

  • Song, Mihwa (School of Electrical and Computer Engineering, University of Seoul) ;
  • Chang, Sekchin (School of Electrical and Computer Engineering, University of Seoul)
  • 송미화 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 장석진 (서울시립대학교 전자전기컴퓨터공학부)
  • Received : 2014.03.11
  • Accepted : 2014.03.26
  • Published : 2014.05.30
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Abstract

The CBS methodology has been standardized in order to make a rapid broadcast of emergency alert message for cellular users. However, the standard does not specify a retransmission request mechanism in the case that the users fail in receiving the alert message. Therefore, we propose a retransmission request scheme based on cognitive radio for the CBS technology in this letter. The simulation results confirm that our proposed scheme is very suitable for the retransmission method in CBS-based emergency alert broadcast systems.

이동통신 가입자에게 재난경보의 신속한 방송을 위해 CBS 기능이 표준으로 정의되어 있다. 그러나 이 표준은 가입자의 재난경보 수신 실패 시 재전송을 요구하는 기능을 정의하지 않는다. 본 논문에서는 이러한 단점을 극복하기 위하여 무선인지 기법을 이용한 재전송 요구 방식을 이용한다. 모의실험 결과는 제안된 방식이 CBS를 위한 재전송 기법에 매우 적합함을 보여준다.

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References

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