End-to-edge QoS across heterogeneous wireless and wired domains
Nemanja Vučević, Francisco Bernardo, Anna Umbert, Miguel López‐Benítez · 2008
Oriented to heterogeneity in every sense, next generation wireless networks are aimed to fulfil constantly increasing users ’ prospects. Relying on the all-IP paradigm, expecta-tions suppose ubiquitous wireless access in heterogeneous networks. When efforts are made to make such an aspira-tion a reality, the main challenging issue raised is the need to seamlessly provide the user with an adequate Quality of Service (QoS) level. This paper gives detailed description of end-to-edge QoS approach in a heterogeneous wireless access network adopted in AROMA project and addresses the most important issues and observations that occurred during the implementation of such a solution in a real-time testbed. The paper gives some qualitative results on possi-bilities to implement coordinated interdomain QoS man-agement by QoS mechanisms independently developed for radio and core network domains. Additionally, it gives an insight into real-time possibilities to track QoS provision across multiple domains revealing real-time behaviour be-fore, during and after the system reconfiguration.