On the asymptotic sum rate of downlink cellular systems with random user locations

Maksym A. Girnyk; Axel Muller; Mikko Vehkaperä; Lars K. Rasmussen; Merouane Debbah

doi:10.1109/LWC.2015.2415796

On the asymptotic sum rate of downlink cellular systems with random user locations

Maksym A. Girnyk
, Axel Muller
, Mikko Vehkaperä
, Lars K. Rasmussen
, Merouane Debbah

Not published at VTT

KTH Royal Institute of Technology
Huawei Technologies Co., Ltd.
CentraleSupélec
Aalto University

Research output: Contribution to journal › Article › Scientific › peer-review

2 Citations (Scopus)

Abstract

We consider a downlink cellular communication system with a multi-antenna base station (BS). A regularized zero forcing precoder is employed at the BS to manage the inter-user interference within the cell. Using methods from random matrix theory, we derive a deterministic approximation for the achievable ergodic sum rate, taking into account the randomness from both fading and random user locations. The obtained approximation describes well the behavior of finite-sized systems and enables efficient optimization of the precoder matrix.

Original language	English
Article number	7065231
Pages (from-to)	333-336
Journal	IEEE Wireless Communications Letters
Volume	4
Issue number	3
DOIs	https://doi.org/10.1109/LWC.2015.2415796
Publication status	Published - 1 Jun 2015
MoE publication type	A1 Journal article-refereed

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10.1109/LWC.2015.2415796

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AB - We consider a downlink cellular communication system with a multi-antenna base station (BS). A regularized zero forcing precoder is employed at the BS to manage the inter-user interference within the cell. Using methods from random matrix theory, we derive a deterministic approximation for the achievable ergodic sum rate, taking into account the randomness from both fading and random user locations. The obtained approximation describes well the behavior of finite-sized systems and enables efficient optimization of the precoder matrix.

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On the asymptotic sum rate of downlink cellular systems with random user locations

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