Megaconference IV and

Mobile Satellite Video

Dr. Bob DixonChief Research Engineer

OARNet Ohio State University

H.323 Forum Conference Nov 15, 2002 New York, New York

The Megaconference is:

World’s largest Internet video conference. EVERYONE is invited.

A professional conference with no central location.

The speakers and audiences are distributed throughout the world. Fully interactive.

Worldwide network of Multipoint Control Units, cascaded together.

A test and a push for the state of the art.

Megaconference Growth

Year Number of Organizations Participating----------- ----------------------------------

1999 50

2000 100

2001 200

2002 400 ???

We cannot continue to grow at this rate.

Quantity vs Quality?

Raise the technical bar for participation

768K speed rather than 384K

H.263 codec rather than H.261

ViDeNet Global Dialing System

Must successfully participate in at least one rehearsal

Schedule Details

The date is December 10, 2002

Registration deadline is Nov 27.

Presentation proposal deadline is Nov 15.

Rehearsals are Nov 15, Nov 26 and Dec 3.

Three sessions. Everyone can be in all.

Early - emphasize Europe Midday - emphasize Western Hemisphere Late - emphasize Asia and Pacific

Megaconference Contents Nine presentations will be given by expert end-users of H.323 technology, on the topics of Distance Learning, and Far Away Places.

A roving satellite dish team will participate from a number of exotic locations.

An international game, with a prize.

A roll call, to give everyone a chance to say hello to the world. Fantastic door prizes.

The Megacon café, where anyone can talk to anyone.

MEGACONFERENCE IV

Preliminary Program, all times EST, durations in parentheses.Dec 10, 2002

Session I - Best time for Europe 8:00am Intro (15) 8:15 Papers. (90) 9:45 Cafe (15) 10:00 Game (30) 10:30 Winners Announce (15) 10:40 Roll Call (30...)

Session 2 -Best time for Western Hemisphere1:00PM Intro (15) 1:15 Papers (90) 2:45 Cafe (30) 3:15 Roll Call (30...)

Session 3 - Best time for Far East and Pacific 6:00PM Intro (15) 6:15 Papers (90) 7:45 Cafe (30) 8:15 Roll Call (30...)

Comparable Spin-off Events

Megaconference 2.5 August 2001

Medical Megaconference October 2002

Transportable Satellite Internet System

Transportable System Design Goals

Provide high-speed Internet access for ALL purposes, including computers, telephones and PDAs.

Inexpensive to build and operate

Off-the-shelf parts for easy duplication

Easy to operate by one person with one day training, with no hand tools.

Small and light

Reliable and adaptable to diverse field conditions

Easily modified

Some Initial ApplicationsProvide distance learning in underconnected locations such as rural areas and inner cities.

Demonstration / Evaluation for a future fixed installation.

Link field research to campus computers and laboratories and collaborators worldwide.

Link field instruction and demonstrations to campus classrooms.

Link field activities to remote databases, eg via PDAs.

Special events, conferences, fairs, disasters, etc.

Remote monitoring of construction projects.

Satellite Trailer Subsystems

Dish and Radio Transceiver

Power

Leveling and Aiming

Heating and Cooling

External Connections

Computer

Ground Station Power Alternatives

(ALL are provided)

Local Power Outlet unlimited(long extension cord)

Batteries via UPS at least 8 hours before(computer controlled) recharging

Gasoline generator at least 24 hours before(pushbutton start) refueling

Type of power Running Time

Aiming System

Satellites are 2 degrees apart in the sky; aiming accuracy must be better than 1/2 degree.

GPS Receiver provides accurate local position to PC.

PC calculates azimuth, elevation and polarization settings.

Dish is aimed with precision compass and inclinometer, using simple adjustments. Azimuth - motor drive Elevation - hand operated turnbuckle

No hand tools required.

Weatherproof Equipment Rack Cabinet

Mounted on shock absorbers.

Automatic thermostatically controlled heater.

Automatic thermostatically controlled ventilation fan.

No actual air cooling. Use parasol if needed.

Contents: Radio transceiver UPS and batteries (more batteries elsewhere) Spectrum analyzer Ethernet switch Laptop PC and docking station Local wireless access point Power line frequency meter

Computing SystemLaptop PC in docking station

Runs 3 special programs:

Satellite aiming Dish Transceiver control and monitoring UPS control and monitoring

Also supports all Internet access such as:

Web browsing Email H.323 Video Conferencing Distance Learning tools

Instructional Site

Transportable Ground Station

Long-Range wireless (20 miles)

Wall-Penetrating wireless(several non-metal walls)

Local Wireless (1000 ft)

Local EthernetCable (200 ft)

Ground Station to Instructional Site Connection Alternatives(ALL are provided)

1

4

3

2

Instructional Site Internal PC Connection Alternatives

Ethernet Switch

PCsGround Station

PCs

PCs

Ground Station

Ethernet Switch

Ground Station

Ethernet Switch

Ground Station

Existing LAN

PCs

External Wireless

Internal Wireless

InternalEthernet

Internal LAN

(ALL are provided)

Ground Station

Wireless Router

PCsExternal and Internal Wireless

1

2

3

4

5

Transportable Satellite Internet System