Performance Analysis of MU-MIMO in Downlink Cellular Networks

Author

Jiancun Fan ; Zhikun Xu ; Li, Geoffrey Ye

Author_Institution

Sch. of Electron. & Inf. Eng., Xi´an Jiaotong Univ., Xi´an, China

Volume

19

Issue

2

fYear

2015

fDate

Feb. 2015

Firstpage

223

Lastpage

226

Abstract

In this article, we investigate achievable sum-rates of a multiuser multiple-input multiple-output (MU-MIMO) network with maximal ratio transmission (MRT) and zero-forcing (ZF) precoders for downlink cellular scenarios. We use Gamma distribution to derive tight lower and upper bounds of the achievable sum-rates. From the analytical results, the sum-rates of the MRT and ZF precoders are increased with the number of the transmit antennas and transmit power, and there exists an optimal number of served users for the highest achievable sum-rates when using the ZF precoder.

Keywords

MIMO communication; antenna arrays; cellular radio; network coding; precoding; radio transmitters; transmitting antennas; Gamma distribution; MRT; MU-MIMO network; ZF precoder; downlink cellular network; maximal ratio transmission; multiuser multiple-input multiple-output network; transmitting antenna; zero-forcing precoder; Gold; Interference; Receiving antennas; Signal to noise ratio; Transmitting antennas; Vectors; MU-MIMO; downlink cellular networks; finite number of antennas; linear precoders; performance analysis;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2014.2377218

Filename

6975028