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The evolution of mobile technologies had a major impact over the mobile services. The requests for multimedia services on portable devices are increasing continuously and they are becoming one of the main engines for the telecommunications industry. The heterogeneous wireless access technologies available on the mobile devices are an opportunity for the Mobile Network Operators to improve the quality...
In IP end to end QoS enabled multidomain communications with guarantees and limited resources, the access control functionality is required. This paper proposes an AAA-based network authorization subsystem for granting authorized end-users access to the end to end QoS services running over the WiMAX access networks. The solution relies on the WiMAX Forum AAA Framework specification. Whereas, several...
This paper presents the architecture, design, implementation and samples of tests performed on a testbed for IEEE 802.16/WiMax access technology while used in a multi-domain environment IP networks. The final target was to implement a system capable to offer connectivity services, with different levels of end to end QoS guarantees, adaptable to different applications. Flexible solutions are proposed...
This paper further refines the architecture and design, introduced in a previous work on the management and control, of the IEEE 802.16/WiMAX access in a multi-domain chain of IP core networks. The high level objective is to manage end-to-end connectivity services in an integrated way, at overlay level, assuring guaranteed QoS for multimedia delivery over networks with heterogeneous access. Flexible...
The ATHENA European Research project (FP6-507312) is proposing a specific structure of hybrid communications access network, exploiting the particularities of the DVB-T system in offering broadband connectivity to Internet for a large category of users. Based on this structure, a specific test-bed was implemented at Politehnica University of Bucharest using the interoperability capabilities of the...
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