Communications Blockset

AWGN Channel

An AWGN channel adds white Gaussian noise to the signal that passes through it. Gaussian noise is discussed on the reference page for the Gaussian Noise Generator block. The AWGN Channel block can process either sample-based or frame-based data, and it lets you specify the variance of the noise in one of four ways:

• Directly as a mask parameter
• Directly as an input signal
• Indirectly via a signal-to-noise ratio parameter
• Indirectly via an E_s/N_o parameter

Channels

Fading Channels