Table 1 OOBE suppression techniques group A, principles and drawbacks included
From: Out-of-band emission suppression techniques based on a generalized OFDM framework
Group A (c l  = d l , ϵ l  = 0, H = I) | Principle and drawbacks |
|---|---|
GS | Principle: reserved subcarrier on the edges with zero input |
Drawback: spectrum efficiency loss | |
CC | Principle: reserved subcarrier on the edges with non-zero input |
Drawback: spectrum efficiency loss; data-dependent design | |
SW | Principle: different subcarriers assigned with different coefficients |
Drawback: data-dependent design | |
Precoding | Principle: a precoding matrix (different purposes for different approaches) |
Drawback: spectrum efficiency loss |