通过广义RAKE接收增强CDMA下行系统容量

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956961

Y. Wang, G. Bottomley

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引用次数: 10

摘要

研究了广义RAKE接收对下行系统容量的影响。系统容量在特定的单元和用户中断概率下进行评估。快速衰落、噪声相关、功率控制和软切换都在我们的研究中。在软切换链路之间进行功率分配的站点选择分集传输(SSDT)方法被证明是最优的，因为它使给定用户的总发射功率最小化。数值结果表明，在高色散信道中，G-RAKE接收机可使系统容量提高30-45%。

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CDMA downlink system capacity enhancement through generalized RAKE reception

The benefit of generalized RAKE reception to downlink system capacity is studied. System capacity is evaluated for certain cell and user outage probabilities. Fast fading, noise correlation, power control, and soft handoff are all included in our study. The site selection diversity transmission (SSDT) approach to power allocation between soft handoff links is shown to be optimal in the sense that it minimizes total transmit power to a given user. Numerical results show that G-RAKE receivers can improve system capacity by as much as 30-45% in a highly dispersive channel.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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