A Novel Prioritization Scheme to Improve QoS in IEEE 802.11e Networks

Figure 8

Transmission probability (${\tau }_i$) for both video and voice class. Although the trends for these classes are opposite each other (in voice class (a) Uniform PDF has always lower ${\tau }_i$ than Gamma while in video class (b) trends are reverse), but this is not a contradiction. As will be explained later both these plots vote to superiority of Gamma PDF.

(a)

(b)