Issues in Satellite Packet Video Communication.

reportActive / Technical Report | Accession Number: ADA135942 | Open PDF

Abstract:

Recent advances in packet communication over satellite links make it now possible, for the first time, to seriously consider the application of this technology to real-time video transmission. Unfortunately, packet communication over satellite links poses several severe problems for real-time video applications The data rate available on packet satellite links is usually below what is required for real-time video applications this data rate is shared dynamically with many other users with unpredictable demands the delay associated with any use of a geosynchronous satellite is very large and the error characteristics vary as a result of many uncontrollable external factors. This paper discusses the problems, suggests several techniques to cope with them, and describes the application of these techniques in a real-time packet video communication system being implemented at ISI. Author

Author(s):
Casner, S. L. ; Cohen, D. ; Cole, E. R.
Author Organization(s):
UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION SCIENCES INST
Descriptive Note:
Research rept.,
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ISI/RS-83-5
Contract/Grant Number(s):
MDA903-81-C-0335
 Subject Terms
Joint Capability Areas:
JCA_6.1.3_Switching and Routing; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6.4.1_Secure Information Exchange; JCA_8.2_Shape; JCA_8_Building Partnerships
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Packets, *Video signals, *Satellite communications, Digital computers, Parallel processing, Microprocessors, Synchronous satellites, Real time, Data rate, Algorithms, External, Errors, Transmittance, Control
Field(s)/Group(s):
Unmanned Spacecraft, Non-Radio Communications
Keyword(s):
Digital video, Discrete transforms, Cosine transforms, Image coding, Packet satellites, Packet video, Picture coding, Video compression, Frame memories, Video teleconferencing, Bit slice processing, Image compression, MC 68000 microprocessors, Internet protocols, PDP 11 computers, PVP(Packet Video Protocol)
Report Date:
1983 Jul 01