论文标题
下行链路零式范围的统计分析
Statistical Analysis of Downlink Zero-Forcing Beamforming
论文作者
论文摘要
我们使用两种射孔归一化方法分析了多细胞网络中有用信号和干扰功率的平均值和方差。尽管平均值一直是早期ZF-BF研究的主要重点，但尚未解决对方差的分析。我们的分析提供了一项完整的统计研究，阐明了差异的重要性，通过推导信号的两个时刻的封闭形式表达式，并为这些表达式提供了实际用途；我们使用伽马或对数正态分布来进行干扰能力来分析中断。
We analyze the mean and the variance of the useful signal and interference powers in a multi-cell network using zero-forcing beamforming (ZF-BF) with two beamformer normalization approaches. While the mean has been the main focus in earlier studies on ZF-BF, analysis of the variance has not been tackled. Our analysis provides a complete statistical study, sheds light on the importance of the variance by deriving closed-form expressions for the signals' two moments, and provides a practical use for these expressions; we use the gamma or lognormal distribution for the interference power to analytically calculate the outage.
