module: ofdm_complex_gaussian
description: create complex gaussian noise with both real (=vec_out[0]) and imaginary (=vec_out[1]) having same 0-mean and variance
parameters: double variance
inputs:
outputs: Vector vec_out
static_variables: double std_dev
classes:
set_output_vector_lengths:
    vec_out=2
init:
    std_dev = sqrt(variance);
code:
    gauss_ran_vector(std_dev, 2, vec_out);
