
304 ◾ Mobile Ad Hoc Networks: Current Status and Future Trends
about 15–20% in comparison to the SWAN model. e average delay is reduced slowly when the
decreasing rate is greater than 25%. Figure 11.16 shows the impact of decreasing rate on the total
throughput of the best-effort TCP flows when the increasing rate is set to 35 Kbps. roughput
in HybQoS becomes almost as larger as throughput in SWAN when the deceasing rate is less
than 25%. For decreasing rate values superior to 25%, a small impact on the total throughput is
observed in both models. ese results demonstrate that by using HybQoS mechanisms, a reduc-
tion of 15–20% in the avera ...