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IEEE 802.16-based Wireless MAN（WiMAX）架構下 IPTV Multicasting系統之設

計與研究Design and Study of an IPTV multicating system over IEEE 802.16-based Wireless MAN

Speaker ： Yang Chi-Wen 楊啟彣

Advisor ： Dr. Ke Kai-Wei 柯開維 博士

Date ： 07/29/2008

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Outline• Introduction• Internet Protocol Television• Worldwide Interoperability for Microwave Access• DirectShow

• IPTV Multicasting System over Proxim WiMAX• System Architecture• System Design• SubSystem

• Conclusion & Future Work• Demo

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IPTV Architecture

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IPTV Technology

• Video Codec• Digital Right Management• Content Delivery Network• Electronic Program Guide• Streaming• Multicast

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IPTV Functional Architecture

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IPTV Delivery Technology

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WiMAX Architecture

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WiMAX QoS

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DirectShow System

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Filter Graph

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Outline• Introduction• Internet Protocol Television• Worldwide Interoperability for Microwave Access• DirectShow

• IPTV Multicasting System over Proxim WiMAX• System Architecture• System Design• SubSystem

• Conclusion & Future Work• Demo

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Why IPTV over WiMAX?• The features of the WiMAX is multicast

capability.• Increase the Number of Subscribers• Scheduled Live Content and Quality A

ssurance.• Mobility.

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Challenge

• WiMAX Bandwidth.• Instance Channel Change.• Mobility.• Jitter.• Overhead.• Transceiver Design.• Power Consumption.

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System Model

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Protocol Stack

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System Design （ 1 ）• VLAN divided by IP address

• Multicast Group divided by VLAN and Channel• Select one prefix group （ 225 ）： first byte• Reserved ： second byte• VLAN ： third byte• Channel ： fourth byte

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System Design （ 2 ）• In the third byte, Define 255 is broadc

ast.• WiMAX Quality of Service Setup

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System Design （ 3 ）• WiMAX Packet Identify Rule

• Service Class Creation• Packet Identify Rule• Service Flow Class• Subscriber Station Class• Relationship ： SS Class SF Class PIR

• Subscriber Station List

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Unicast for VoD

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Multicast for Live

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Filter Graph

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Media Server （ VoD ）

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Media Server （ Live ）

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Server FlowChart

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Client FlowChart

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Multicast Algorithm

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RTP Client

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Renderer

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Outline• Introduction• Internet Protocol Television• Worldwide Interoperability for Microwave Access• DirectShow

• IPTV Multicasting System over Proxim WiMAX• System Architecture• System Design• SubSystem

• Conclusion & Future Work• Demo

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Conclusion

• Using DirectShow Solution to implement the graph.

• Use RTP Protocol to send content. • Using PMP feature of WiMAX to implement

multicast algorithm.• The system capacity increase.• QoS assurance.• The user have the capability to watch TV wh

en they are outside.

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Future Work

• Technology• RTSP• Gateway• DRM• Application Function• Codec

• Application• Real-Time Long Distance E-Learning • Send Message by Location in Vehicle• Interactive Game

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Demo