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多基站协作系统中有限反馈性能分析

DOI: 10.13190/jbupt.201302.79.handsh, PP. 79-83

Keywords: 基站协作,有限量化反馈,块对角化预编码,多用户干扰,小区间干扰

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Abstract:

针对多基站协作系统,分析了吞吐量性能受有限反馈的影响,推导了系统吞吐量损耗的上限值.在各小区反馈比特数相等和用户总反馈比特数固定情况下,提出了适应系统的有限反馈方案当各小区反馈比特数相等时,反馈比特数随信噪比的增加,可使系统吞吐量损耗的上限值保持恒定;当用户总反馈比特数固定时,通过最优反馈分配方案使吞吐量损耗的上限值最小.

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