Integrating Adaptive Video Streaming Service with Multi-access Network Management

Hierarchical management architecture and testbed for mobile video service optimization

“…These include the IEEE 802.21 Media Independent Handover (MIH) services and the 3GPP Access Network Discovery and Selection Function (ANDSF). Also, proprietary frameworks supporting more extensive cross-layer signaling for optimizing handovers, such as the triggering framework used in [5], are available.…”

“…That is, the system may decide to trigger a handover, adaptation, or both depending on the conditions. In order to allow such flexibility in the control, a framework supporting coordinated handover and video adaptation decisions was proposed in [5], and is extended to support hierarchical management in this paper.…”

“…The architecture also adopts the hierarchical multi-access network management approach proposed in [3] for local optimization and scalability. Furthermore, the principles established for coordinated multimedia and mobility management in [5] are followed. The rest of this section provides an overview of the different elements.…”

“…The framework essentially provides the required knowledge building and signaling functions for the management. DDE follows the same principles as the triggering approach used in [5], but with various enhancements (e.g. security).…”

“…10) in order to teach the algorithm rather strict clustering limits. Seven clusters were The UDA software running in the Enhanced Video Client receives network-side events carrying the APs' status and acts upon them according to a simple logic introduced already in [5]. UDA decides to adapt the video whenever it receives an event indicating that the Radio Interface Quality of the current AP has dropped below 3.…”