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AP Functions for IP Broadcasting

AP Functions for IP Broadcasting. Jongtaek Oh (Hansung University) Joongoo Park (Samsung Electronics Co.) Jaewoo Lim (RRL). Contents. Limitations of Internet services IP broadcasting for wireless LAN Killer applications for IP broadcasting Further work.

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AP Functions for IP Broadcasting

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  1. AP Functions for IP Broadcasting Jongtaek Oh (Hansung University) Joongoo Park (Samsung Electronics Co.) Jaewoo Lim (RRL) J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  2. Contents • Limitations of Internet services • IP broadcasting for wireless LAN • Killer applications for IP broadcasting • Further work Related Doc.s - 11-03-0739-00-0wng-wng-WLAN-Local-Broadcasting-Services.ppt - 11-04-0433-00-0wng-ap-functional-requirement-initiatives-for-wlan-broadcasting.ppt J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  3. Delivery of Internet Datagram • Unicasting service • point to point delivery of datagram • Almost all of Internet services use this service. • Multicasting service • point to specific multi-point delivery of datagram • needs multicasting IP addresses & routers • Broadcasting service • point to non-specific multi-point delivery of datagram • causing too much traffic to the network • have been used only in the subnet J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  4. Basic Limitations of Internet Services • Necessity of unique IP address • Lack of IP addresses to be assigned • Difficulty of managing IP addresses, especially for mobile unit • Client-server model : server access & request • Necessity of pre-knowledge of web site address • Every time click is needed to request information. • So much load to server as increasing number of users J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  5. Benefits of IP Broadcasting • No necessity of receiver IP address • No DHCP server. No IP address managing. No limitation of number of receivers • No necessity of pre-knowledge of web site address & information request • Just listening and tuning of broadcast data like radio • Less load to server and less network traffic • Sending datagram to each Access Point not to terminals • No privacy problem of location information • No violations to existing protocols ! J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  6. Network Configuration for IP Broadcasting AP with IP2 Broadcasting server 1 Internet AP with IP1 Broadcasting server 2 J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  7. Demo Program in Windows At the server At the client terminal J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  8. Datagram Format & Protocol Stack Protocol ID Dest. IP addr Source IP addr UDP port No. UDP data Internet Datagram Format Application UDP IP MAC PHY Application UDP IP MAC PHY L M E IP Addr.Trans. MAC PHY MAC PHY Internet Terminal AP Server Protocol Stack J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  9. Header Format • Controls broadcasting parameters of AP • Repetition period & duration • Priority control, scrambling, etc. • Type of data • Users can see interesting data only by filtering. • Terminals can use for their own purposes. Ex) SW or firmware upgrade Control flags type of data field broadcast data Simplified Payload Format for IP Broadcasting J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  10. Terminal Initiation for IP Broadcasting 3) Req. Broadcasting Broadcasting server AP Internet timer 4) Broadcasting Data 6) Quit after time out 5) Data Broadcasting 1) Broadcasting Announcement 2) Req. Broadcasting J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  11. Multicasting + IP Broadcasting Internet AP with multicasting IP addr Broadcasting server Multicasting router IGMP Multicasting router Multicasting router Multicasting router Req. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  12. 8 No. of Terminals ( No. of APs) Traffic Comparison Conventional Unicasting method Total Traffic IP Broadcasting method IP B. with Terminal Trigger Multicasting + IP B.=Multicasting J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  13. IPSec in Brief • IPSec protocol • Authentication Header (AH) • proof of data origin on received packets, data integrity, anti-replay protection • Encapsulation Security Payload (ESP) • functions of AH + data confidentiality • IPSec mode • Transport mode : end to end protection • Tunnel mode : for VPN J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  14. IPSec for Secure IP Broadcastingbetween Servers and APs • Requirements • end to end protection in Internet domain • as simple as possible • IPSec protocol + IPSec mode • ESP with transport mode for IP broadcasting encrypted IP header ESP header data field ESP trailer authenticated Simplified IP Datagram Format J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  15. AP Functions for IP Broadcasting Controller IP address translator Data storage (optional) New Block Existing Block Battery (optional) Wireless Transceiver Ethernet or ADSL connection J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  16. Adaptation to Wireless & Wired Network • IP broadcasting can be applied to all kind of wireless network termination. • Wireless LAN, 2.3GHz Portable Internet, 3G All IP Network, Bluetooth, UWB, WLL, DSRC, Broadcasting System, etc. • This technology is most efficient method for local broadcasting for the wireless network whose backbone is Internet. • This technology can be also applied to router / switch for the applications of local broadcasting. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  17. Killer Applications of IP Broadcasting J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  18. Simple Bridging between Broadcasting and Internet Connection Broadcast Text, Graphic, Image, Sound, even Alerting data * Special menu of nearby restaurant - Sea food spaghetti - Herb bibimbab - Italian pizza - Hot cold noodle Korean Restaurant Special price W5,000 click! from just seeing into interactive service - Broadcasting service + Interactive communication service with unique communication network (WLAN) J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  19. Local Shopping Information Services - As users pass through the street, they get the information about shopping, entertainment, restaurant nearby. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  20. Local Geographic Information Services 1F Click & move to web site automatically Shop Cafe Toilet Telephone No. Parking lot - The user can get the geographic information without any prior knowledge about where one is. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  21. EXIT FIRE Disaster Relief Guiding Services ESCAPE ! - With data storage and battery equipped in the AP, emergency information can be broadcast for a while, without power supply and network connection. - User terminal can be awakened with alerting signal. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  22. repeating Local Traffic Information Services for Drivers - Broadcasting service for local traffic information. No click for requesting data is needed. - The data should be provided to the drivers at least once within the radio zone. So repeated broadcasting is necessary with internal data storage of AP. - Mobility with WLAN is already approved with experiment by several operators. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  23. Data Throughput Measurement for 11gin Mobile Environment - Vehicle speed : 160km/h, AP ANT Height : 1m - Ref. paper Will be published in IEICE Tr. Comm. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  24. Sight Seeing Information Service Bus Stop Seoul City Tour Nearby historic spot is …. Tour Bus This statue is ... - Informational guidance according to the geographic spot and article. - It consists of text, image, and sound. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  25. Advertising Business Magic cap W50,000 Just click now! Banner ad. - Internet shopping and advertising business like cable TV J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  26. Private Radio Broadcasting Services - Private radio station using WLAN - With just one AP, text, audio, and moving picture can be broadcast to unlimited number of users within radio zone. • 2 strikes & 3 balls • There is a missing child. Seoul Sports Complex J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  27. Education Services Korean Peninsula - The same contents including broadband data can be provided to students in the class. - Just broadcasting can serve this service; point-to-point delivery wastes so much radio bandwidth. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  28. Further Work • Standardization for IP Broadcasting protocol • Header format • Messages for announcing, triggering, etc. • Data scrambling for tariff • Existing protocol for streaming services, etc. • I hope these standardization activities could be done in the newly established AP functionality SG. J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

  29. Thank you ! • Contact point of authors • Jongtaek Oh, Ph.D. Professor of Hansung University, Seoul, Korea. +82 16 232 6172, jtoh@hansung.ac.kr • Joongoo Park, Ph.D. Senior Engineer, Samsung Electronics Co., LTD, Korea +82 16 9530 5114, t9park@samsung.com J.T. Oh, Hansung/J.G.Park, Samsung/J.W.Lim, RRL

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