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The aim of this work is to present a QoS enabled routing protocol in ad hoc networks and compare it with a normal routing protocol. Results demonstrate how a QoS enable routing mechanism makes the resource consumption more efficient by minimising the unnecessary signalling and stopping the sessions that cannot meet the demanded QoS requirement. The performance of both routing and QoS routing protocols are evaluated in the presence of information achieved from the link layer. The QoS enabled routing protocol shows a significant improvement in the protocol performance metrics applied in our measurements, such as packet delay and protocol overhead. The results achieved from this experiment lead us to analyse our proposed mechanism to add link layer information in control routing messages. Measuring wireless resources, such as bandwidth, with the help of periodic signalling packets makes both the routing and the QoS routing protocols react slower to wireless link changes. This problem can be overcome by more frequent advertisements.