*4.3.3. Delay significant networks*

In delay significant networks, α, β and γ is defined as 1, 1, 2, as shown in Fig. 12. From the figure we find that when event generation rate is between 0.0001 and 4.0, the nonaggregation is investigated to be the best TOI; and when the event generation rate is from 4 to 30, the partial aggregation is the best; the full aggregation is the best TOI when event generation rate is larger than 30.

**Figure 12.** Tradeoffs of delay significant
