Fig. 8
![Fig. 8](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13638-021-02060-9/MediaObjects/13638_2021_2060_Fig8_HTML.png)
The bit error rate performance at different frame lengths (\(L=1\), \(L=2\) and \(L=3\)) for SR-PI-DCSK for \(\beta =50\)
The bit error rate performance at different frame lengths (\(L=1\), \(L=2\) and \(L=3\)) for SR-PI-DCSK for \(\beta =50\)