Statistical Analysis of Downlink Zero-Forcing Beamforming

被引：6

作者：

Ammar, Hussein A. ^{[1
]}

Adve, Raviraj ^{[1
]}

Shahbazpanahi, Shahram ^{[1
,2
]}

Boudreau, Gary ^{[3
]}

机构：

[1] Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

[2] Univ Ontario Inst Technol, Dept Elect Comp & Software Engn, Oshawa, ON L1H 7K4, Canada

[3] Ericsson Canada, Ottawa, ON L4W 5K4, Canada

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Interference; Array signal processing; MIMO communication; Fading channels; Probability density function; Statistical analysis; Antennas; Zero-forcing beamforming; multi-cell MIMO; outage analysis; moments; gamma distribution; lognormal distribution; KS test; PROPAGATION; PERFORMANCE;

D O I：

10.1109/LWC.2020.3009570

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：1965 / 1969

页数：5

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