Abstract:

To conform to the property of priority differentiation and meet the dynamic resource requirement for multimedia traffics, a dynamic resource allocation and optimization strategy based flexible admission control is presented. A new bandwidth adjustment rule, a path bandwidth calculation algorithm and a QoS routing protocol that meets dynamic resource requirements are designed to support applications of the scheme in the multi-hop network environments. Simulation results show that the proposed scheme has low probabilities of new connection blocking and handoff connection dropping, and more traffic flows can be admitted. It supports differentiated services for flows with different priorities, and thus can achieve better share, balance and utilization for wireless resources as compared to conventional ones.

Key words: Ad Hoc, admission control, quality-of-service (QoS), priority