Producing the quality of service in wireless network is a complex subject because of constraints related to the ad hoc mode as limited bandwidth, sharing medium...etc. The traditional routing based on hop count metric doesn’t take in its consideration

the quality of the wireless link which causes the rate reduction in the network. In an effort to improve the performance of Mobile Ad hoc Network (MANET), cross-layer technique is implemented. It aimed to

resolve QOS problems in manet and permit to share information about network status between different layers.