BER Analysis for Equal Gain Transmission in Downlink Multiuser MIMO Systems

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 distr...

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Bibliographic Details
Published in:IEEE wireless communications letters 2015-10, Vol.4 (5), p.533-536
Main Authors: Hua Fu, Crussiere, Matthieu, Helard, Maryline
Format: Article
Language:English
Subjects:
Approximation methods
BER derivation
Bit error rate
equal gain transmission
Fading
Interference
Large-scale MIMO
MIMO
multi-user interference
Nakagami distribution
Transmitting antennas
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Summary: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 /N 0 .
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2015.2453155