
454 ◾ Mobile Ad Hoc Networks: Current Status and Future Trends
For this performance analysis, a number of assumptions were made to simplify the calcula-
tions. For example, the contention window (CW) is never 0 and so the sender must wait for a
time longer than DIFS. Moreover, TCP congestion window size was set to one. Future packets
may not need to be acknowledged in a one-to-one fashion, and so the throughput would grow.
Furthermore, throughput is shared among the users but the network throughput itself is decreased
as the number of users is increased and so is the possibility of collisions. However, the theoretical
throughput is not devi ...