Rate adaptation for control packets in multi-rate IEEE 802.11b networks
Qingshan Wang · Computer-aided engineering · 2008
With the fact that control packets are transmitted in a lower rate in IEEE 802.11b ad hoc networks and the network performance is decreased,a rate adaptation scheme is proposed.The main idea is that AARF(Adaptive Auto Rate Fallback)is used to adjust transmission rates automatically for RTS(Request to Send),ACK(ACKnowledge)and DATA packets while the CTS(Clear to Send)packets are not adjusted to reduce time occupied by control packets.The simulation results indicate that the throughput of IEEE 802.11b ad hoc networks can be significantly improved by the scheme.