The noise issue in the coverage map of Sionna 1.0.2

[yankaiqiao]

I noticed that Sionna 1.0.2 has made many changes compared to 0.19.2, including modifications to the coverage map calculation method. In version 0.19.2, noise suppression in the coverage map could be achieved by averaging multiple computations, as demonstrated by the num_runs parameter in this code snippet:

# Compute the SINR map
cm_etoile = scene_etoile.coverage_map(
    max_depth=7,
    los=True,
    reflection=True,
    diffraction=True,
    cm_cell_size=(1, 1),
    num_samples=int(10e6),  # Decrease to reduce memory consumption
    num_runs=1)  # Increase to average over multiple coverage maps to reduce noise

However, this feature appears to be absent in version 1.0.2 - I couldn't find any equivalent parameter definition in RadioMapSolver(). So how should we implement noise reduction in 1.0.2? I think the design in 0.19.2 was quite good in this aspect.

[jhoydis]

Hey @yankaiqiao,

This feature was removed because Sionna 1.0 can compute radio maps with orders of magnitudes more samples. Did you give this a try? Maybe try 100M or even 1bn. However, we could consider bringing this feature back in a future release.

[yankaiqiao]

Got it, thanks for your reply!