Figure 3
From: Blind recognition of space-time block code in MISO system
The feature distribution of five STBCs in the second three-dimensional spaces. It illustrates the feature distribution of the five STBCs in the three-dimensional spaces mapped by Amari3, Amari4, and Amari6. The number of received samples, the type of modulation, the number of Monte Carlo trials, and the signal-to-noise ratio are N=2,048, QPSK, 50 times, and 20 dB, respectively. It shows that OSTBC3 with rate 1/2, the first code of OSTBC3 with rate 3/4, and the second code of OSTBC3 with rate 3/4 cluster at different places in the three-dimensional spaces mapped by Amari3, Amari4, and Amari6.