IP storage and stored content management using SIP presence server with XML database

There are few studies of content delivery systems specializing in consumer generated video (CGV) exchange, and as for the real exchange technique, exchange through the file server in a network has become mainstream. A solution using P2P has been also proposed, but a structure for safe content exchange guaranteed by the service provider is necessary for the further spread of a service. Therefore, we propose a distributed storage video on demand system (DSVS) for delivering CGV content stored in a user IP storage. It is important to know how the server in a network manages stored CGV(s), including the storage. A standard system for managing the storage and also the stored files does not exist. Thus, we propose a storage management system, a part of our DSVS, that uses a session initiation protocol presence function and an XML database management system. These are additional functions of the IP multimedia subsystem, which is a core system of the next generation network (NGN). In Japan, access services for the IPv6 Internet and an NGN with one IPv6 address began in 2011. Therefore, the number of potential NGN users will increase with the spread of the IPv6 Internet access service. We show that our system can become the foundation of various content delivery services due to the versatility of the storage management capability of our DSVS.