Figure 2

Comparisons in terms of Normalized Shannon entropy HS.
The black and red curves denote the Normalized Shannon entropy HS for the number of 8 bits and 16 bits-words respectively in our proposal, while the blue and green curves represent the Normalized Shannon entropy of the QW-based scheme14 for the number of 8 bits and 16 bits-words respectively. (see text in the section entitled Results).