A Design Of Multicast IPTV Scheduling Algorithm Under Multi-Service-Based 10G EPON

In recent years, HDTV, VoIP, video broadcasting, multi-split screen, time-shifted narrowcasting and other advanced multi-service have emerged with the deepening of the "triple play". As an advanced access technology, 10 G EPON is regarded as the best choice of multiservice bearer undoubtedly. However, due to the point-to-multipoint topology of 10 G EPON, it faces some security threats. Simultaneously, business users requirements remian diversified, and the quality of different business service are also not the same, thus it is essential to study how 10 G EPON carries multi-service under secure network.This paper simply introduces the basic structure and uplink/downlink data transmission principle of 10 G EPON, analyzes the network topology of its multipoint security threats, and proposes the necessarity of mutual authentication between OLT and ONU. Then we have proposed a scheme that emdeds NTRUsign into the registration phase of 10 G EPON to solve the two-way identity of OLT and ONU, which provides a secure condition for 10 G EPON to carry mulitiple services. As for different business remain different QoS needs, especially IPTV service occupies much of the channel bandwidth and causes negative influence on other business. Thus, the paper proposes a multi-service scenario based on a single VLAN / Multicast IPTV queue scheduling classification scheme, first all business can be classified into general class services and IPTV multicast services according to Differentiated Services Classification model, then they respectively step into unicast and multicast cache queue, and WRR scheduling algorithm is used for allocating reasonable bandwidth to satisfy the needs of different users.Finally, FPGA hardware design of queue scheduling program of IPTV services under multiple service based on 10 G EPON is given, including OLT MPCP control terminal, Frame filter, RS transmission, Proxy_Up listening and OLT classified scheduling five modules, and ONU receiving end of the RS, MPCP control, Snooping_Up listening and downstream data transfers four modules, realizing the basic hardware design of EPON network.