Accession Number : ADA597116


Title :   Path Diversity Media Streaming over Best Effort Packet Switched Networks


Descriptive Note : Doctoral thesis


Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES


Personal Author(s) : Nguyen, Thinh P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a597116.pdf


Report Date : Jan 2003


Pagination or Media Count : 187


Abstract : Recent years has witnessed phenomenal growth of the Internet. According to Internet Software Consortium, number of hosts has reached 171 millions in January 2003 versus 71 millions in January 2000 and 5.8 millions in January 1995. Part of this explosive expansion is the proliferation of multimedia data such as image, audio and video on the Internet. The current best-effort Internet, however, does not guarantee Quality of Service (QoS) such as minimum bandwidth, packet loss rate, and delay which are critical to many multimedia applications. As such, many significant challenges remain to design and deploy delay sensitive multimedia applications over the Internet effectively. In this dissertation, we develop a path diversity framework for concurrent media streaming to a receiver using multiple routes. Without requiring QoS, our framework improves the quality of the streamed media via multiple routes created using either multiple senders or relay nodes, in order to increase available bandwidth, reduce packet loss and delay. Our path diversity framework combines many approaches from the network architecture and protocols, to source and channel coding to in order to improve the overall quality of the streamed media. From an architecture point of view, our proposed path diversity framework combats packet loss, delay, and insufficient bandwidth for pre-recorded streaming media by sending packets simultaneously from multiple senders to a single receiver. For interactive and live streaming applications, the path diversity framework allows a single sender to send packets simultaneously on both default and redundant paths to the receiver. To create a redundant path, the sender sends packets to the appropriate relay node, which then forwards the packets to the receiver.


Descriptors :   *NETWORK ARCHITECTURE , *PACKET SWITCHING , BANDWIDTH , INTERNET , MEDIA , NODES , PACKETS , PATHS , REDUNDANCY , ROUTING


Subject Categories : Computer Systems
      Telemetry


Distribution Statement : APPROVED FOR PUBLIC RELEASE