Channel sounding is a technique that evaluates a radio environment for wireless communication, especially MIMO systems. Because of the effect of terrain and ...
Methods for WiFi beamforming, feedback, and sounding (WiBEAM) are described. Codebook based beamforming feedback signaling and sounding mechanisms for use ...
To avoid a repeat with 802.11ac, engineers writing the specification settled on just one method of beamforming, called null data packet (NDP) sounding. ... wi-fi ...