Multimedia Conferencing System

Multimedia Conferencing SystemMultimedia Conferencing SystemIntroduction to MCS 3.0

• Pure multitasking conferencing system

•Video conference made possible from Window based PC

•emulates regular conference in meeting rooms

• user-friendly and client-server based

•fully integrated network based conferencing system

Multimedia Conferencing SystemMultimedia Conferencing System

WAN

clientclient

client

client client

clientMLICMLIC

serverserver

routerrouter

MCS 3.0 architecture :

Multimedia Conferencing SystemMultimedia Conferencing System

The entities of MCS are :

• The Client entity

•The Conference Server entity

•The MLIC entity

•The Compression entity

Multimedia Conferencing SystemMultimedia Conferencing System

The Client entity performs :

•Multimedia captures

•Multimedia playback

•Data packetization & reconstruction

•Communication to server to maintain the RSW control criteria.

Multimedia Conferencing SystemMultimedia Conferencing System

Video & Audio modules :

Dimension 160 x 120

Image Type 8 bit palletized (256 colors)

Protocol UDP (Broadcast Packets)

Audio type Wave format

Protocol UDP (Broadcast Packets)

Multimedia Conferencing System Multimedia Conferencing System

The MLIC entityMLIC in active site LAN will :

•Listen to specified ports for Audio/Video packets

•Change to Audio/Video UDP unicast and transmit out.

MLIC in the destination LAN does:

•Data packetization & reconstruction

•Communication to server to maintain the RSW control criteria.

Multimedia Conferencing SystemMultimedia Conferencing System

MLIC MLIC

server server

LAN 1 LAN 2router

client

clientclient

client

clientclient

The MLIC in MCS architecture :

Multimedia Conferencing SystemMultimedia Conferencing SystemThe Server entity•Control the conferencing using the RSW control

criteria chosen

•To allow users to login into the system

•To reflect the document conferencing TCP/IP packets to all participants.

•Establish inter-server links (during multi server conferences).

Multimedia Conferencing SystemMultimedia Conferencing SystemThe Multi-Server communication :

WANserver server

server server

Multimedia Conferencing SystemMultimedia Conferencing SystemData Compression (DC) entity •Detect Audio/Video UDP unicast at the MLIC

interface.

•Compress Audio/Video data and transmit via router interface.

•Receive compressed Audio/Video UDP unicast from router interface.

•Uncompress Audio/Video data and transmit via LAN interface.

• All other miscellaneous network packets arriving at both interfaces are transparently forwarded to the opposite interface

Multimedia Conferencing SystemMultimedia Conferencing SystemThe DC provides :

Implementation of any types of compression algorithm :

• H.261• H.320• MJPEG• YUV411

Multimedia Conferencing SystemMultimedia Conferencing System

Quality Factor : 10File Size : 1.34KB

Quality Factor : 75File Size : 3.86KB

Quality Factor :5File Size : 1.10KB

Quality Factor : 25File Size : 1.89KB

Original ImageFile size : 19.1KB

Quality Factor : 99File Size : 16.8KB

Comparison (Quality vs. Size)

Multimedia Conferencing SystemMultimedia Conferencing SystemThe Next Generation : MCS 4.0• full duplex Audio/Video

• Uses Internet Real-time streaming standards

• Data transmission in Real-time Transfer protocol

• Data transmitted in IGMP multicast packets

• Real-time conference updates

• Dynamic color correction

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WAN CLOUD

PENANG

JOHOR

KL

Intercommunication between Offices in Penang, KL

Multimedia Conferencing SystemMultimedia Conferencing System

LaboratoryAdministration Office

Lecture Hall/ Classroom Library

ATM BACKBONE

Intercommunication between Classrooms in School/College

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P UTRAJAYA &CYBERJAYA

M CSS er v e r /Clien t

UNIVERS ITIES

M CSS er v e r /Clien t

M CSS er v e r /Clien t

M CSS er v e r /Clien t

M CSS er v e r /Clien t

M CSS er v ic e &

Ins ta lla t ion

KLIA

CORP ORATIONS

M INIS TRIES

COM MUNICATIONS

M ULT IM EDIA

S UPE RCORRID OR

Intercommunication between Government Agencies

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ATM BACKBONE

Par 1 Par 2

Par 3

Par 4

GovernmentAgencies

CorporateSector

R&D Department