用于CDMA的自适应天线

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.1998.723853

Y.J. Guo, S. Vadgama, M. Davies, J. Khalab, M. Zarri, D. Spink

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引用次数: 1

摘要

提出了一种用于CDMA蜂窝系统上行链路的决策定向自适应天线。研究了自适应天线在各种情况下的性能。结果表明，在信噪比较大、活跃用户数量适中、活跃用户呈聚类而非均匀分布的情况下，自适应天线的性能明显优于转向波束。当扇区存在大量随机分布的活跃用户时，自适应波束形成器的性能与转向波束的性能相似。实践证明，自适应阵列天线与分集技术相结合是实现第三代CDMA蜂窝移动通信系统低误码率的有力技术。

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An adaptive antenna for CDMA

A decision directed adaptive antenna for the uplink of CDMA cellular systems has been presented. The performance of the adaptive antenna in various scenarios has been studied. It is shown that the adaptive antenna significantly outperforms the steering beam when SNR is large, the number of active users is moderate, and the active users are clustered instead of being uniformly distributed. The performance of the adaptive beamformer becomes similar to that of the steering beam when there are a large number of randomly distributed active users in the sector. It is proved that a combination of the adaptive array antenna and diversity is a powerful technique to achieve low BER in the third generation (3G) CDMA cellular mobile communications systems.

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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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