Proceedings of the Korea Contents Association Conference (한국콘텐츠학회:학술대회논문집)
- 2003.11a
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- Pages.289-302
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- 2003
Performance Analysis of Multicarrier CDMA System with Adaptive Modulation in Wireless Environment
무선환경 하에서 적응형 변조기를 적용한 다중 반송파 CDMA 시스템의 성능 분석
- Lee, Kwang-Hee (Dept. of Computer & Communication Eng., Chungbuk National Univ.) ;
- Kim, Hang-Rae (Dept. of Computer & Communication Eng., Chungbuk National Univ.) ;
- Han, Tae-Young (Dept. of Computer & Communication Eng., Chungbuk National Univ.) ;
- Kim, Nam (Dept. of Computer & Communication Eng., Chungbuk National Univ.)
- Published : 2003.11.01
Abstract
In this paper, the performance of a multicarrier CDMA system applying adaptive modulation and adaptive subchannel allocation scheme is analyzed in wireless environment. In case of the proposed system, total subchannels is 4 and data is transmitted over 2 subchannels with the biggest fading, Threshold of each channels is 5.2 ㏈, 9 ㏈, 13.2 ㏈ and 8.4 ㏈, 12.2 ㏈, 16.3 ㏈. The BER of 10-3 is 8.1 ㏈. This is increased 12.9 ㏈ in comparison with the existing system. The BPS according to average channel is needed average E
본 논문은 무선 환경하에서, 적응형 변조기와 적응형부채널 할당 방식을 적용한 다중 반송파 CDMA 시스템의 성능을 분석한다. 제안한 시스템의 경우, 총 부채널수가 4이고 이 가운데 두 개의 부채널로 데이터를 전송한다면 각 채널의 임계값은 5.2 ㏈, 9 ㏈, 13.2 ㏈와 8.4 ㏈, 12.2 ㏈, 16.3 ㏈ 나타났다. BER이 10-3을 만족하는 평균 E
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