What advantage provided by 802.

Maximal Ratio Combining (MRC) is a technique used in MIMO (Multiple Input Multiple Output) systems to improve signal quality by combining multiple received signals. However, 1x1:1 client devices have only one transmit and one receive antenna, making them incapable of utilizing MRC, which requires multiple antennas to combine signals effectively.

The CWDP-305 Official Study and Reference Guide explains:CliffsNotes

"Features like Maximal Ratio Combining, which rely on multiple antennas, are not applicable to single-stream (1x1:1) client devices."