The provisioning of GPON IP based video services is implemented by electronic program guide (EPG)/content portal. When an STB starts and passes authentication. With the address, it accesses the video system to perform software load and user authentication. When it passes user authentication, the video management system will send an EPG according to his/her rights and service subscription. EPG is portal pages through which the subscriber can select services. There are many ways to acquire an EPG with assistance from the client on an STB and EPG/portal server. For BTV services, an EPG should offer necessary multicast session information such as multicast address, port no., media type, and coding scheme. Coding schemes for IPTV programs include the MPEG2, MPEG4, and WMV. The MPEG2 provides ordinary video quality at a code rate of 2 Mbit/s and broadcasting-class video quality at a rate of 3.5 Mbit/s. The MPEG-4 enables high video quality at a rate of 1.5 Mbit/s while H.264 can provide more video services with higher definition at rates below 1 Mbit/s. Video streams are delivered using MPEG over IP [14]. Multicast video streams coming from the coder and video server are directly output to core network and then sent to subscribers via a FTTP access network. IPTV that is already been emerged with many IP based broadband services, is continuously evolving and changing. At the same time, service providers’ networks have different needs depending on markets, distribution areas, plant and density. Increasingly, service providers need access platforms to launch service from different points in the network, to utilize different copper or fiber facilities, and to incorporate more quality and performance with the services offered. Adaptability becomes an important aspect for access to meet a variety of needs, with the choice in the hands of the service provider rather than dictated by the limitations of technology.

 

GPON optical network terminal (ONT) provides support for high speed data and high definition IPTV service with Gigabit Ethernet ports. It is a cost-effective solution for point to multipoint scenarios where passive optical splitters are used to allow a single optical fiber for providing multiple premises. IPTV delivers video services based on IP multicast. At the source end, different program, sources are configured with different multicast address, and reach the ONU device through a series of broadcast service. Effective broadcast IPTV service requires extensive bandwidth and the support of IP multicast and IGMP. For deployments requiring open access or other multiple broadcast sources, these can be provisioned on VLAN basis. Thus, through IGMP and IP multicast, the ONT model provides full support for broadcast IPTV services with VLAN capability supporting open access IPTV solutions. The large bandwidth available on such GPON ONTs enables them to transparent transport all video encoding standards, including MPEG-2 and MPEG-4. In example, if each ONT supports over 256 multicasts MPEG-2 video channels con-currently, then that is capable to provide virtually unlimited video streams support with unicast MPEG-2. Additionally, some ONTs are ide-ally suited to support VoD, PPV and other IPTV related packet-based services desired today by numerous networks.

 

Triple Play Service by GPON
                                        Figure: Triple Play Service by GPON