%0 Journal Article %T Distributed Storage Manager System for Synchronized and Scalable AV Services across Networks %A Frank X. Sun %A John Cosmas %A Muhammad Ali Farmer %A Abdul Waheed %J International Journal of Digital Multimedia Broadcasting %D 2011 %I Hindawi Publishing Corporation %R 10.1155/2011/687071 %X This paper provides an innovative solution, namely, the distributed storage manager that opens a new path for highly interactive and personalized services. The distributed storage manager provides an enhancement to the MHP storage management functionality acting as a value added middleware distributed across the network. The distributed storage manager system provides multiple protocol support for initializing and downloading both streamed and file-based content and provides optimum control mechanisms to organize the storing and retrieval of content that are remained accessible to other multiple heterogeneous devices. 1. Introduction In the Savant project (http://dea.brunel.ac.uk/project/Savant/), as part of the overall system architecture providing the end-to-end application for producing, delivering, and using of enriched interactive TV content, the content access system (CAS) presents the scalable (where scalability means content personalization, device independence and network independence) and synchronized service to the user by means of multiple heterogeneous devices [1]. It is designed as a home media server which adapts the service so that it can be consumed in a personalized way using three different device classes with different properties: a conventional TV set for traditional viewing, a TabletPC as a portable powerful, highly interactive personal device, and a PDA as a portable lightweight personal device. While the TV set is connected directly to the home media server, the portable devices will communicate with the server using IP via a WLAN connection. Additional content to be synchronized with the main content, such as a signer or multiple camera views, can be delivered over broadband or broadcast networks. The CAS supports the presentation synchronization transparently. Multimedia home platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. The MHP enables the reception and execution of interactive, Java-based applications on a TV set. Interactive TV applications can be delivered over the broadcast channel, together with audio and video streams. These applications can be, for example, information services, games, interactive voting, e-mail, SMS, or shopping. Although there is a certain amount of storage management incorporated with multimedia home platform (MHP 1.2) specification, this is not sufficient for the storage requirements of the home media server system [2]. At present, the storage management functionality specified by MHP is restricted and based on the Java File %U http://www.hindawi.com/journals/ijdmb/2011/687071/