# 다중 전송률을 지원하는 VSG-CDMA 역방향 링크 성능 분석

• Lee, Young-Ho (Dept. of Computer & Communication Eng., Chungbuk National Univ.) ;
• Kim, Hang-Rae (Research Institute for Computer & Information Communication, Chungbuk National Univ.) ;
• Kim, Nam (Dept. of Computer & Communication Eng., Chungbuk National Univ.)
• 이영호 (충북대학교 정보통신공학과) ;
• 김항래 (충북대학교 컴퓨터정보통신연구소) ;
• 김남 (충북대학교 정보통신공학과)
• Published : 2003.03.01

#### Abstract

In this paper, the capacity of VSG-CDMA system supporting multi-media service in the reverse link is analyzed by considering the two models according to the power control and user distribution. In analysis model I, assuming perfect power control and uniform distribution of users, the equation of blocking probability is calculated and the maximum number of voice and data user is derived in accordance with 1 % blocking probability. In analysis model II, it is analyzed by assuming power control error and non-uniform distribution of users. The result of analysis model I means the upper bound of system capacity in the 5 MHz wideband VSG-CDMA system, and the result of analysis model II shows the lower bound of system capacity. Also, the improved plan of performance for VSG-CDMA system is suggested by the analyzed result according to data activity and the value of $E_b/N_o$ in model II.

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