Asymptotic Analysis of Regularized Zero-Forcing in Double Scattering Channels

Abstract
This paper studies the sum-rate performance of regularized zero-forcing (RZF) precoding in a multi-user multiple-input single-output (MISO) system, where the channel between the base station (BS) and each user is modeled by the double scattering channel model. This non-Gaussian channel accounts for both the spatial correlation in the antenna arrays and the structure of scattering in the propagation environment. The user population is divided into G groups, where the users in the same group experience similar propagation conditions and are characterized by common correlation matrices. Under this setting, we derive deterministic approximations of the signal-to-interference-plus-noise ratio (SINR) and the sum-rate with RZF precoding, which are almost surely tight in the large system limit. Simulation results confirm the close match provided by the asymptotic analysis for moderate system dimensions.

Citation
Nadeem Q-U-A, Kammoun A, Debbah M, Alouini M-S (2018) Asymptotic Analysis of Regularized Zero-Forcing in Double Scattering Channels. 2018 IEEE Global Communications Conference (GLOBECOM). Available: http://dx.doi.org/10.1109/GLOCOM.2018.8647297.

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
2018 IEEE Global Communications Conference (GLOBECOM)

Conference/Event Name
2018 IEEE Global Communications Conference, GLOBECOM 2018

DOI
10.1109/GLOCOM.2018.8647297

Additional Links
https://ieeexplore.ieee.org/document/8647297

Permanent link to this record