BER Analysis for Equal Gain Transmission in Downlink Multiuser MIMO Systems

Author

Hua Fu ; Crussiere, Matthieu ; Helard, Maryline

Author_Institution

Inst. Nat. des Sci. Appl. de Rennes, Univ. Eur. de Bretagne, Rennes, France

Volume

4

Issue

5

fYear

2015

Firstpage

533

Lastpage

536

Abstract

In this letter, we derive the bit error rate (BER) performance of a multiuser multiple-input multiple-output (MU-MIMO) system using equal gain transmission (EGT) precoding. Considering binary phase shift keying (BPSK) modulation, we analyze and propose a statistical model based on the Nakagami distribution for the interference terms involved in the received signals. The precision of our model is compared with the common Gaussian approximation and validated through simulation results. A closed-form BER expression is derived as a function of the number of transmit antennas for arbitrary E_b/N₀.

Keywords

MIMO communication; Nakagami channels; antenna arrays; binary codes; error statistics; modulation coding; multiuser channels; phase shift keying; precoding; radiofrequency interference; statistical distributions; transmitting antennas; BPSK modulation; EGT precoding; Nakagami distribution; binary phase shift keying modulation; closed-form BER expression; downlink MU-MIMO system bit error rate performance; equal gain transmission precoding; multiuser multiple-input multiple-output system BER performance; received signal interference; statistical model; transmit antennas; Approximation methods; Bit error rate; Fading; Interference; MIMO; Nakagami distribution; Transmitting antennas; BER derivation; Large-scale MIMO; equal gain transmission; multi-user interference;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2015.2453155

Filename

7150542