PP Presentation
- The average number of retransmissions per frame is one less, or:
- (4)
using (4) and the fact that: Total channel cap.
for R (=avg #bad frames) and 1 good one is
(5)
U
=
D
(
L
/
(
1
-
L
)
)
(
F
+
CT
)
+
(
F
+
A
+
2
CI
)
if the variance of I is low then
(6)
subst (6) into (5) gives:
(6a)
U
=
D
(
L
/
(
1
-
L
)
)
(
F
+
A
+
2
CI
)
+
(
F
+
A
+
2
CI
)