Bandwidth resource optimization in video-on-demand network architectures

It is generally recognized that interactive video-on-demand (IVOD) will become an important residential service of this decade. However, many issues with respect to the way this service has to be offered to the users remain open and me still subject to vigorous research activities. The aim of the paper is to present a VOD network solution based upon the Broadband Integrated Digital Network (B-ISDN) that targets the mass deployment of the IVOD service and offers the ability to cope with future types of multimedia services. By means of a VOD reference network and traffic mode, it is demonstrated that the proposed solution can achieve an optimized use of network (bandwidth), online storage and processing resources while guaranteeing a desired grade of service (GoS) under all circumstances