Title:
METHOD AND SYSTEM FOR PACKET COMMUNICATION EMPLOYING PATH DIVERSITY
Document Type and Number:
WIPO Patent Application WO2002067497
Kind Code:
A3
Abstract:
Communication over lossy packet networks such as the Internet is hampered by limited bandwidth and packet loss. The present invention provides a path diversity transmission system for improving the quality of communication over a lossy packet network. The path diversity transmission system explicitly sends different subsets of packets over different paths, thereby enabling the end-to-end application to effectively see an average path behavior. Generally, seeing this average path behavior provides better performance than seeing the behavior of any individual random path. For example, the probability that all of the multiple paths are simultaneously congested is much less than the probability that a single path is congested. The resulting path diversity can provide a number of benefits, including enabling real-time multimedia communication and simplifying system design (e.g., error correction system design). Two exemplary architectures for achieving path diversity are described herein. The first architecture is based on source routing, and the second architecture is based on a relay infrastructure. The second architecture routes traffic through semi-intelligent nodes at strategic locations in the Internet, thereby providing a service of improved reliability while leveraging the infrastructure of the Internet.
Inventors:
APOSTOLOPOULOS G JOHN
WORNELL GREG
WORNELL GREG
Application Number:
PCT/US2002/003454
Publication Date:
February 13, 2003
Filing Date:
February 08, 2002
Export Citation:
Assignee:
HEWLETT PACKARD CO (US)
International Classes:
H04L12/56; H04L29/06; (IPC1-7): H04N7/24; H04N7/64; H04N7/68
Domestic Patent References:
| WO2000067469A1 | 2000-11-09 | |||
| WO2000005898A2 | 2000-02-03 |
Foreign References:
| US6141486A | 2000-10-31 | |||
| EP0550843A1 | 1993-07-14 |
Other References:
APOSTOLOPOULOS J G: "Reliable video communication over lossy packet networks using multiple state encoding and path diversity", VISUAL COMMUNICATIONS AND IMAGE PROCESSING 2001, SAN JOSE, CA, USA, 24-26 JAN. 2001, vol. 4310, Proceedings of the SPIE - The International Society for Optical Engineering, 2000, SPIE-Int. Soc. Opt. Eng, USA, pages 392 - 409, XP008007161, ISSN: 0277-786X
APOSTOLOPOULOS J G: "Error-resilient video compression", MULTIMEDIA SYSTEMS AND APPLICATIONS II, BOSTON, MA, USA, 20-22 SEPT. 1999, vol. 3845, Proceedings of the SPIE - The International Society for Optical Engineering, 1999, SPIE-Int. Soc. Opt. Eng, USA, pages 180 - 191, XP008007214, ISSN: 0277-786X
APOSTOLOPOULOS J G: "Error-resilient video compression through the use of multiple states", PROCEEDINGS 2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (CAT. NO.00CH37101), PROCEEDINGS OF 7TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VANCOUVER, BC, CANADA, 10-13 SEPT. 2000, 2000, Piscataway, NJ, USA, IEEE, USA, pages 352 - 355 vol.3, XP002211784, ISBN: 0-7803-6297-7
REIBMAN A R ET AL: "Transmission of multiple description and layered video over an EGPRS wireless network", PROCEEDINGS. INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, XX, XX, 10 September 2000 (2000-09-10), pages 136 - 139vol2, XP002191180
APOSTOLOPOULOS J G: "Error-resilient video compression", MULTIMEDIA SYSTEMS AND APPLICATIONS II, BOSTON, MA, USA, 20-22 SEPT. 1999, vol. 3845, Proceedings of the SPIE - The International Society for Optical Engineering, 1999, SPIE-Int. Soc. Opt. Eng, USA, pages 180 - 191, XP008007214, ISSN: 0277-786X
APOSTOLOPOULOS J G: "Error-resilient video compression through the use of multiple states", PROCEEDINGS 2000 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (CAT. NO.00CH37101), PROCEEDINGS OF 7TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VANCOUVER, BC, CANADA, 10-13 SEPT. 2000, 2000, Piscataway, NJ, USA, IEEE, USA, pages 352 - 355 vol.3, XP002211784, ISBN: 0-7803-6297-7
REIBMAN A R ET AL: "Transmission of multiple description and layered video over an EGPRS wireless network", PROCEEDINGS. INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, XX, XX, 10 September 2000 (2000-09-10), pages 136 - 139vol2, XP002191180
Download PDF:
Previous Patent: CONTRACT MANAGEMENT
Next Patent: COMMUNICATION OF ELECTRONIC DATA VIA A NETWORK INFRASTRUCTURE
Next Patent: COMMUNICATION OF ELECTRONIC DATA VIA A NETWORK INFRASTRUCTURE