%0 Journal Article
%T Secure and Reliable IPTV Multimedia Transmission Using Forward Error Correction
%A Chi-Huang Shih
%A Yeong-Yuh Xu
%A Yao-Tien Wang
%J International Journal of Digital Multimedia Broadcasting
%D 2012
%I Hindawi Publishing Corporation
%R 10.1155/2012/720791
%X With the wide deployment of Internet Protocol (IP) infrastructure and rapid development of digital technologies, Internet Protocol Television (IPTV) has emerged as one of the major multimedia access techniques. A general IPTV transmission system employs both encryption and forward error correction (FEC) to provide the authorized subscriber with a high-quality perceptual experience. This two-layer processing, however, complicates the system design in terms of computational cost and management cost. In this paper, we propose a novel FEC scheme to ensure the secure and reliable transmission for IPTV multimedia content and services. The proposed secure FEC utilizes the characteristics of FEC including the FEC-encoded redundancies and the limitation of error correction capacity to protect the multimedia packets against the malicious attacks and data transmission errors/losses. Experimental results demonstrate that the proposed scheme obtains similar performance compared with the joint encryption and FEC scheme. 1. Introduction As digital technologies process, Internet Protocol Television (IPTV) has emerged in the past years to deliver high-quality multimedia services to end users over IP broadband networks. Generally, IPTV has multifaceted content such as video/audio/text/graphic/data and needs to provide the user-required quality of experience (QoE), interactivity, security, and reliability in the IP-based networks [1]. The typical IPTV applications include the cable TV-like service and video on demand (VoD). In the cable TV-like service, the service provider can provide the entertainment, news, and sports programs in a regular standard definition (SD) or further high definition (HD) format, while the VoD service supports more personal options to select their favorite multimedia content. Because the IP technology is basically the same for the IPTV and Internet applications, IPTV is likely to integrate the existing and independent services over the home network connection. Since the content delivered through IPTV is mostly of high economic value and of copyright with user¡¯s subscription, secure and reliable transmission becomes an important issue in provisioning IPTV content and services. The basic principle of the service and content protection is to ensure that users are only able to obtain the services they are entitled to access and use the content in accordance with the right they have been granted [2, 3]. For content and service protection, the conditional access system (CAS) and digital right management (DRM) are two primary protection technologies on
%U http://www.hindawi.com/journals/ijdmb/2012/720791/