Abstract:

The criteria of available bandwidth estimation in wireless ad hoc networks are studied and the standard in judging the feasibility of bandwidth requirements is proposed where the overall QoS provision should be taken into consideration. An analytical model of IEEE 802.11based wireless networks is built and the QoS metrics such as delay, packet loss ratio and throughput are derived, and based on which the detailed criteria of available bandwidth estimation are presented. Simulations verify the accuracy of the analytical model and the validity of the criteria of available bandwidth estimation.

Key words: IEEE 802.11;nonsaturation;available bandwidth;quality of service