Admission control and bandwidth reservation in multi-hop ad hoc networks

With the rising popularity of wireless multimedia applications and the adoption of IEEE 802.11 access technologies in mobile ad hoc networks, admission control and bandwidth reservation are highly needed in such networks to prevent network saturation and thereby improve the overall network performance. This requires efficient solutions on available bandwidth estimation, QoS routing, admission decision, bandwidth reservation and signaling, etc. We propose a framework, which is compatible with existing AODV routing protocol, to achieve above goals by cross layer cooperation between IEEE 802.11 MAC and AODV-QoS routing protocol. Simulations show that proposed framework is able to alleviate saturation, achieve higher throughput, lower end-to-end delay and jitter, without increasing AODV overhead.