Erratum to: Complex Adapt Syst Model (2016) 4:18 DOI 10.1186/s40294-016-0030-y

In published version of the article (Shah et al. 2016), Figure 9 caption shows a wrong citation such as “Figure 9. Classification of CR MAC protocols (Shah, M.A. Sijing Zhang 2013).” The figure is adopted from Joshi et al. (2009). Hence, the corrected caption of Fig. 9 is given in this erratum.

Fig. 9
figure 9

(Joshi et al. 2009)

Classification of CR MAC protocols