Effective Software-Based Solution for Processing Mass Downstream Data in Interactive Push VOD System

Interactive push VOD system is a new kind of system that incorporates push technology and interactive technique. It can push movies to users at high speeds at off-peak hours for optimal network usage so as to save bandwidth. This paper presents effective software-based solution for processing mass downstream data at terminals of interactive push VOD system, where the service can download movie according to a viewer-s selection. The downstream data is divided into two catalogs: (1) the carousel data delivered according to DSM-CC protocol; (2) IP data delivered according to Euro-DOCSIS protocol. In order to accelerate download speed and reduce data loss rate at terminals, this software strategy introduces caching, multi-thread and resuming mechanisms. The experiments demonstrate advantages of the software-based solution.

Authors:

• Ni Hong
• Wu Guobin
• Wu Gang
• Pan Liang

Keywords:

• DSM-CC
• data carousel
• Euro-DOCSIS
• push VOD.

References:

[1] CM-SP-RFIv1.1, Data-Over-Cable Service Interface Specifications
DOCSIS 1.1, 2005.
[2] ISO/IEC 13818-1, Information technology -- Generic coding of moving
pictures and associated audio information - part 1: Systems, 1997.
[3] ISO/IEC 13818-6, Information technology -- Generic coding of moving
pictures and associated audio information - part 6: Extension for digital
storage media command and control (DSM-CC), 1997.
[4] ETSI EN 301 192 V1.3.1 Digital Video Broadcasting (DVB), DVB
specification for data broadcasting, 2003.
[5] ETSI TS 102 812 V1.2.1 Digital Video Broadcasting (DVB), Multimedia
Home Platform (MHP) Specification 1.1.1, 2003.