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상관된 대수 정규-나카가미 페이딩을 받은 다중 간섭파가 DS-CDMA 시스템에 미치는 영향
이현행,현근주,김남수 청주대학교 산업과학연구소 1999 産業科學硏究 Vol.17 No.1
In the paper, We have considered the correlation coefficient that wasn't reflected to compute the performance of DS-CDMA in the real wireless channel. Also, according to increase of the log-normal variable, the number of interference, and the variance of interference and change of correlation coefficient, have analyzed the probability of call drop and the capacity of user in DS-CDMA Cellular system. In the analysis, We have analyzed the effect of multiple wave interference on DS-CDMA Cellular system by the proposed method by Schwartz and Yeh. Also, the effect of reciprocal correlated multiple wave interference on DS-CDMA system is analyzed by outage probability and analyzed capacity of DS-CDMA system, according to the change of the correlation coefficient, imperfect power control, processing gain, signal to noise, number of interference, voice activity, etc, respectively. From the results, we have known the capacity of DS-CDMA system is much sensitively affected by increase of the correlation coefficient and the number of interference. Also, the more the error of the power control increase and the fading of the mobile channel is severe, the more the outage probability increases and the capacity of the system reduces.
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