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Performance Analysis of MC/DS-CDMA System with Smart Antenna  

박인규 (인하대학교 전자공학과 통신공학연구실)
김백현 (인하대학교 전자공학과 통신공학연구실)
신승훈 (인하대학교 전자공학과 통신공학연구실)
곽경섭 (인하대학교 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.4B, 2002 , pp. 291-297 More about this Journal
Abstract
Due to the increasing demand for high data multimedia service, there has been progressing study of adaptive smart antenna to increase both the performance and capacity using limited wireless resource. IS-95 scheme in the origin of cdma2000 of IMT-2000 standard uses signals of spreading and Walsh-Orthogonal Modulation in reverse link. But, in the case of reverse lint there exists difficulty in synchronous of signals transmitted from users. Therefore, orthogonality between users is not satisfied. So, asynchronous MC-CDMA scheme may yield low performance. In this paper, MC/DS-CDMA scheme to reverse link transmission in adaptive array antenna environment is proposed for spreading the S/P-converted data streams using a given spreading code. Due to frequency diversity effect, simulation results show that the proposed system provides improved BER performance and narrow band interference supple psi on.
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  • Reference
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