Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Performance Evaluation of Adaptive Modulation System with STTD

STTD 기법을 적용한 적응변조시스템의 성능 평가

  • 강도욱 (동신대학교 전기전자공학과) ;
  • 강희조 (목원대학교 IT공학부 컴퓨터ㆍ멀티미디어소학부)
  • Published : 2003.06.01
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Abstract

In this paper, We analysed performance of adaptive modulation system with STTD. Transmission error of system is increased by ISI according to delay wave in wireless channel environment. Therefore, We analysed performance that it is applied adaptive modulation system with STTD to reduce ISI's effect. As a results, Data transmission of high speedㆍhigh quality could know possible by applying adaptive modulation system with STTD. Because of selected high modulation mode in low SNR.

본 논문에서는 STTD(Space Time Transmit Diversity)를 적용한 적응변조 시스템의 성능을 분석하였다. 무선채널 환경에서는 지연파에 의한 ISI(Intersymbol interference)간섭으로 인해 전송 오율을 증가시키게 된다. 따라서 ISI간섭의 영향을 줄이기 위해 STTD를 적용함으로써 적응변조시스템의 성능개선 정도를 분석하였다. 결과에 의하면, STTD를 적용함에 따라 더 낮은 SNR에서도 변조 다치수가 높은 변조 모드를 선택할 수 있기 때문에 고속.고품질의 데이터 전송이 가능함을 알 수 있었다.

Keywords

References

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