1. ”Distributed Corks” A Research Byte Bob Kinicki

2. Research Byte October 22, 2004 2 Peer-to-Peer Web Server 12 1 11 8 4 7 2 6 9 10 14 5 13 15 3 Host B Host C Host L Host G Host H Host F Host K Host M 16 17 nodes AP W1 W2 W3 W4 Video The Wine Network

3. Research Byte October 22, 2004 3 Streaming Multimedia  Using FEC (Forward Error Correction) Huahui Wu: Using FEC with temporal and quality scaling.  TFRC (TCP Friendly Rate Control) –like protocol for Wireless Networks Mingzhe Li: Using “packet-pair”ish scheme to adapt to changes in available wireless capacity.  Using Partial Retransmissions with Error Concealment to improve quality of video streams Yubing Wang: Investigate retransmissions related to RTTs and dynamic adjustments in video quality control.  Measurement Studies Available Video - Mingzhe’s Video crawler journal article Media Server - Jim Nichol’s masters thesis SWAN - Feng Li has the lead on this video wireless measurement study. Wireless Multimedia Streaming Lab – Mingzhe

4. Research Byte October 22, 2004 4 WMSL Topology Slide courtesy of Mingzhe’s PEDS presentation Monday October 25,2005

5. Research Byte October 22, 2004 5  Streaming Multimedia over Wireless  Wireless Access Points [Infrastructure]  Mobile Wireless Networks [Ad Hoc] –Includes routing and power consumption issues. –Security is an added challenge. –The problem space includes nodes “coming and going”. Wireless Networks

6. Research Byte October 22, 2004 6 Wireless Sensor Networks  RFID networks –Wal-Mart and DoD  Indoor Sensor Networks –Building Controls  Outdoor Sensor Networks –Virtual vineyards –Bird sanctuaries

7. Research Byte October 22, 2004 7 Corks

8. Thank You! Bob Kinicki FL135 rek@cs.wpi.edu