Managing end-to-end QoS

Efficient network management can provide improved flexibility, scalability and robustness by distributing monitoring, analysis and control functionality throughout the networks. End-to-end (wired and wireless) QoS management faces big new challenges. The paper discusses both the online monitoring and the offline inter-network analysis. Monitoring methods in the core networks and the wireless access networks are analyzed respectively. From the analysis above, we infer that the different services and networks need to be measured by using different methods. The effective architecture to implement the end-to-end QoS management is proposed. The components of the integrated inter-network analysis process are discussed in order to provide end-to-end quality of service (QoS) guarantee. Simulation results show that these methods have good performance.