Figure 2
The data rates of a flow that are achieved within 20 time slots are the average data rate 
in slot 1, the data rate 
in slots 2 to 6, no data transmission in slots 7 to 8, and the average rate 
or more in slots 9 to 20. (a) If the flow is a real-time (RT) flow with a window size of 
over 
time slots, then 
is the average of the window rate degradations 
, 
, 
, and 
. That is, 
is 
. (b) If the flow is a non-real-time (NRT) flow with a window size of 
over 
time slots, then CRD equals zero.