Fig. 2
From: Low complexity precoding codebook design based on DFRST for limited feedback precoded OSTBC systems
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13638-017-0891-6/MediaObjects/13638_2017_891_Fig2_HTML.gif)
BER evaluation of QPSK modulation based on Alamouti code (2×1) with 6 bits feedback
From: Low complexity precoding codebook design based on DFRST for limited feedback precoded OSTBC systems
BER evaluation of QPSK modulation based on Alamouti code (2×1) with 6 bits feedback