A Combined Design to Provide QoS for Mobile Ad Hoc Networks

To transmit real-time traffic in mobile ad hoc networks, a combined design of TDMA MAC and routing protocol was proposed. Most approaches proposed recently applied schemes in the routing protocol to provide QoS and paid no attention to the MAC design. Actually, the ability to provide QoS heavily depends on how well the resources are managed in the MAC layer. In our work, we try to focus on the design of MAC protocol and combine it with AODV to provide QoS. The QoS requirement of a certain session can be satisfied if all nodes in the route reserve slots with the corresponding frame length. It is convenient to manage slot assignment information and select a slot with a certain frame length in a binary tree structure. Simulation results are presented to verify the performance of the combined design.