Statistical Analysis of Downlink Zero-Forcing Beamforming
Information Theory
2020-08-06 v1 Systems and Control
Signal Processing
Systems and Control
math.IT
Applications
Abstract
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.
Keywords
Cite
@article{arxiv.2008.01875,
title = {Statistical Analysis of Downlink Zero-Forcing Beamforming},
author = {Hussein A. Ammar and Raviraj Adve and Shahram Shahbazpanahi and Gary Boudreau},
journal= {arXiv preprint arXiv:2008.01875},
year = {2020}
}
Comments
To appear in IEEE Wireless Communications Letters