The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance of H.264 SVC with Base Layer Repetition and HARQ over Wireless Link

무선링크에서 기본 계층의 반복과 HARQ를 적용한 H.264 SVC의 성능

  • 안성균 (동국대학교 전자전기공학부 통신연구실) ;
  • 한동하 (동국대학교 전자공학과) ;
  • 황승훈 (동국대학교 전자전기공학부)
  • Received : 2012.02.06
  • Accepted : 2012.07.05
  • Published : 2012.08.31
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Abstract

In this paper, we propose base layer repetition and HARQ schemes for improving the reliability and the performances of H.264 SVC video transmission in a wireless channel, and investigate its performances. The proposed method may solve the problems of transmission delay as well as the scarcity of wireless resources, since the proposed scheme was applied for only base layer, not for enhancement layer. The numerical results show that the proposed scheme can enhance the BER performance of $1.5{\times}10^{-5}$ and the FER of $1.2{\times}10^{-3}$, when SNR=3.4dB. Also, it was confirmed through the resultant images that the proposed method can improve the SVC performance in the wireless link.

본 논문은 무선 채널 환경에서 H.264 스케일러블 비디오 코딩으로 부호화된 비디오 데이터의 전송 성능 개선과 신뢰성 향상을 위해 기본계층 반복 전송과 HARQ를 제안하고 그 성능을 확인하고 있다. 제안 방법은 향상계층을 제외하고 기본계층에만 적용되기 때문에, 무선자원의 부족과 전송 지연의 문제들도 해결해 줄 수 있다. 수치 결과 제안 방법은 SNR=3.4dB 기준으로 $1.5{\times}10^{-5}$의 BER 성능을 보였고, 동일 SNR에서 $1.2{\times}10^{-3}$의 성능을 보여 주었다. 또한 실험 영상 결과를 통해서도 제안 방법이 무선 링크에서 SVC 성능을 개선함을 확인하였다.

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References

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