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Coherence Bandwidth Online Simulator


Coherence Bandwidth Simulator







Coherence Bandwidth Simulator Workflow

1. Example Input Parameters

  • Signal Bandwidth: 2 MHz
  • RMS Delay Spread: 1 ยตs
  • Channel Type: Rayleigh

2. Simulator Calculates Coherence Bandwidth

The simulator estimates the coherence bandwidth of the wireless channel.

Typical approximation:

Bc ≈ 1 / (5 × ฯ„rms)

Stricter approximation:

Bc ≈ 1 / (50 × ฯ„rms)

Example Calculation

  • ฯ„rms = 1 ยตs
  • Bc = 200 kHz

3. Compare Signal Bandwidth with Coherence Bandwidth

The simulator compares the signal bandwidth with the coherence bandwidth to determine the fading type.

Case 1

Signal Bandwidth < Coherence Bandwidth

Result: Flat Fading

Meaning: The entire signal bandwidth experiences approximately the same fading.

Case 2

Signal Bandwidth > Coherence Bandwidth

Result: Frequency Selective Fading

Meaning: Different frequency components of the signal experience different fading levels.

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