Fig. 7From: A low-complexity channel training method for efficient SVD beamforming over MIMO channelsSimulated BER for PPP with beamforming vector re-estimation (VR) at forward Pong stage compared to the Ping–Pong–Pong base case and the ideal SVD beamforming with LS-estimated channel (SVD-BF-LS) using a \(4 \times 4\) MIMO arrayBack to article page