Wireless Audio Conferencing System (WACS) Mehmet Ali Abbasoğlu Furkan Çimen Aylin Deveci Kübra Gümüş.

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Presentation transcript:

Wireless Audio Conferencing System (WACS) Mehmet Ali Abbasoğlu Furkan Çimen Aylin Deveci Kübra Gümüş

Project Description  Wireless Ad-Hoc Network communication in wider area by hopping from node to node  Multiple users will be able to talk simultaneously without needing an access point and Internet

Software Requirements  Functional Requirements See all connected users to WLAN Send request -> Accept / Reject  Non-Functional Requirements For fluid conversation, fast&efficient voice transfer Full-duplex-> speak&heard at the same time

Technologies Used  Hardware Technologies Laptop with b Wireless technology Microphone & speaker  Software Technologies Eclipse IDE Netbeans Java Media Framework (JMF) library

Java Media Framework (JMF)  Enables audio, video and other time-based media to be added to applications and applets built on Java technology.  Capture, playback, stream, and transcode multiple media formats, extends the Java 2 Platform, Standard Edition (J2SE) for multimedia developers by providing a powerful toolkit to develop scalable, cross- platform technology.

JMF Structure  data sources (Data source)  interception equipment (Capture Device, including the interception of video and audio equipment)  player (Player)  processor (Processor)  data format (Format)  Manager (Manager)

Real-time Transport Protocol (RTP )  RTP is an end to end transport layer protocol intended for transmitting realtime data such as audio and video.  RTP has a companion protocol called RTP Control Protocol ( RTCP) whose role is to monitor the quality of data delivery offered by the RTP.

Why we used RTP?  TCP is not an appropriate choice for carrying real-time multimedia contents Multimedia contents do not demand the 100% reliability Overhead introduced by TCP causes large amount of delay in receiving the data and makes the application less interactive  UDP is also unsuitable for multimedia transmission UDP does not guarantee ordered delivery of packets

The networking protocol stack with JMF RTP API

DEMO

What we have learned?  Hardware access from software  UDP and datagram  JMF and RTP

Future Plans  View all connected clients in the wireless network area  Multi-hop communication  User friendly GUI

Thank You for Your Listening Any Questions?