CLA-QOS: A Cross-Layer QoS Provisioning Approach for Mobile Ad-hoc Networks

The increasing popularity of the multimedia applications in mobile ad hoc networks (MANETs) has led to research on QoS support for these applications. However, this is difficult in such networks because of factors such as shared and variable wireless bandwidth, limited power supply and possible mobility of the nodes. Although many QoS provisioning schemes have been presented, few have provided the end-to-end QoS assurance from the point of view of cross layer optimization. In this paper, a cross-layer approach to QoS provisioning (CLA- QOS) is proposed to provide such QoS support. Simulation results show that the CLA-QOS approach provides QoS guarantees in terms of the in-time packet delivery ratio of packets. Simulation studies supporting this are provided.