OFDM simulation

Interactive OFDM with Rayleigh fading and noise.

See how subcarriers behave when channel fading and AWGN collide. Adjust SNR, modulation, and subcarrier count to explore practical signal performance.

OFDM Simulator

Orthogonal Frequency-Division Multiplexing with Rayleigh fading channel and Gaussian noise.

Current channel gain: 1

Use more subcarriers to see how OFDM spreads symbols across the channel.
SNR: 15 dBlower noise → higher symbol clarity
25% of symbol lengthadds guard interval before FFT

Modulation

Channel

Type: Rayleigh fading

Subcarrier count: 32

Current gain: 1

OFDM time-domaintransmit vs receive
Frequency-domain viewfaded subcarrier energy

How to interpret output

Subcarrier stability

Watch which subcarriers degrade first as fading and noise increase. This reveals robustness limits.

SNR sensitivity

Sweep SNR and observe trend shifts to estimate where your configuration stops meeting quality goals.

Parameter trade-offs

Compare modulation and subcarrier settings to balance throughput and reliability under realistic channels.