Fabio Ubaldi

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We propose a synchronization control scheme which achieves both speech/video Intra-Stream synchronizations and Inter-Stream synchronization for videoconferencing services over IP networks. The driving principle of our scheme is to guarantee the Intra-Sync speech timing relationships (hence the speech quality) and to adjust the video Intra-Sync and the(More)
In [1] we introduced a new real-time variable frame rate control scheme. It is based on the video jerkiness and it can be applied to both coding and transcoding. This scheme constantly traces the motion of the incoming video and automatically tunes the outgoing frame rate according to the level of jerkiness acceptable by the user. This scheme has been(More)
Admission Control and routing are key aspects in next generation networks supporting advanced Quality of Service and Traffic Engineering functionalities. However, traditional Traffic Engineering solutions usually rely exclusively on routing algorithms to achieve optimization in network resource usage, while Admission Control is simply limited to a local(More)
This paper describes the requirements and challenges on WAN due to NFV in case of datacenter interconnections crossing heterogeneous domains for technology, control and vendors. It is presented a new architecture with novel functional building blocks between transport and service layers named E2E harmonization. Such architecture allows efficient(More)
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