http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
제3세대 시스템을 위한 무선접속방식의 비교-Ⅱ : 혼합 TDMA/CDMA 방식
이순규,남옥우,김재형 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-
In this paper, we examined TDMA/CDMA hybrid cell schemes which use the merit of TDMA and CDMA schemes. The candidates are as follows. TDMA/CDMA hybrid schemes of FRAMES FMA1(TDMA with spread), Intracell TDMA/Intercell CDMA hybrid cell schemes and TDMA/CDMA : multicode. If we combine these hybrid schemes with hierarchical cell systems, we acquire much performance improvement. On the other hand, we have a tendency to faded the merit of use of TDMA and CDMA schemes individually (e.g. spreading gain of CDMA system are reduced). Therefore appropriate combination of these two schemes guarantee the success of hybrid cell systems.