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Table 3 MIMO-PD performance versus polynomial order for coupling levels ρ = -20 dB with SNR = 30 dB and SNR = 40 dB, and IQ imbalance of β1 = β2 = 5% and ϑ1 = ϑ2 = 5° (PA-1)

From: Power amplifier linearization technique with IQ imbalance and crosstalk compensation for broadband MIMO-OFDM transmitters

SNR

LS P = 4

RLS P = 3

RLS P = 4

RLS P = 5

RLS P = 3 (even and odd)

 

ACPR (dB)

EVM (dB)

ACPR (dB)

EVM (dB)

ACPR (dB)

EVM (dB)

ACPR (dB)

EVM (dB)

ACPR (dB)

EVM (dB)

30 dB

- 41.0

- 28.2

- 44.8

- 28.2

- 37.8

- 26.5

- 30.6

- 26.3

- 44.8

- 27.7

40 dB

- 50.2

- 31.0

- 49.3

- 29.5

- 49.8

- 29.6

- 49.9

- 29.6

- 49.8

- 29.4

  1. The DC offset is |ε1| = |ε2| = 0.1.