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라이시안 페이딩과 임펄스 잡음이 존재하는 환경에서 선택 합성 다이버시티 기법과 길쌈 부호화 기법을 채용한 16 QAM 신호의 성능해석
김광락(Kim Kwang-Rak),이호영(Lee Ho-Young),김언곤(Kim Eon-Gon) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, we analyzed the error rate performance of convolution coded 16 QAM signal in impulsive noise Environments. We used convolution code and selective combining diversity for performance improvement. We analyzed the error rate performance of 16 QAM signal in impulsive noise environments compared with gaussian noise environments. As a result of analysis, there is a BER segment where the efficiency of system does not improve until which limit to raise a signal power potential from impulsive noise environment. when the signal power potential which goes over this limit is supplied, BER efficiency improve much more.
페이딩 채널에서 최대비 합성 다이버시티 기법과 길쌈 부호화 기법을 채용한 16 QAM 신호의 수신 성능 개선에 관한 연구
이호영(Lee Ho-Young),김언곤(Kim Eon-Gon) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, we analyzed the error rate performance of convolution coded 16 QAM signal with Optimum Threshold Detection with maximum ratio combining diversity in Rician Fading Environments. The performance of 16-QAM signal with CTD (conventional threshold detection) which employs convolution coding technique was analyzed and the performance improvement of convolution coded 16-QAM signal with OTD (optimum threshold detection) which is varied according to fading parameter "K" and AWGN in Rician Fading channel was simulated. As a result of analysis, it was shown the effect of performance improvement to overcome the environment of mobile radio data communication channel.