Title :
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
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 Eb/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;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2015.2453155
