DS/CDMA系统的最佳单用户检测，实现完全的MAI取消

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI:10.1109/ISSSTA.1998.722517

N. R. Patel, Timothy O'Farrell

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引用次数: 3

摘要

当信道噪声主要受多址干扰(MAI)影响时，传统的匹配滤波器检测(MFD)在DS/CDMA系统中是次优的。误码率是误码率性能的一个限制因素。已经提出了多用户检测方案来对抗MAI，但这些方案具有高度的复杂性。最佳单用户检测器(OSD)大大降低了复杂性，同时保持了比MFD更好的误码率性能。该探测器的第一个实现(OSD-1)是由O'Farrel(1989)提出的。提出了一种新的探测器结构解释(OSD-2)，可以完全取消MAI。比较了OSD-2、OSD-1和MFD。

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Optimum single-user detection for DS/CDMA systems achieving complete MAI cancellation

Conventional matched-filter detection (MFD) in a DS/CDMA system is sub-optimal when the channel noise is dominated by multiple access interference (MAI). MAI is a limiting factor to the bit error rate performance. Multi-user detector schemes have been proposed to combat MAI but these schemes have a high degree of complexity. The optimum single-user detector (OSD) considerably reduces the complexity while maintaining an improvement in the BER performance over the MFD. The first realisation of this detector (OSD-1) was proposed by O'Farrel (1989). A new interpretation of this detector architecture (OSD-2) is presented which can completely cancel MAI. A comparison of the OSD-2 with OSD-1 and the MFD is presented.

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来源期刊

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)

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