Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at https://www.ucl.ac.uk/finance/research/rs-contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
On the Manipulation of JPEG2000, In-Flight, Using Active Components on Next Generation Satellites
  • Publication Type:
  • Authors:
    Sacks L, Sellappan HK, Zachariadis S, Bhatti S, Kirstein P, Fritsche W, Gessler G, Mayer K
  • Publisher:
  • Publication date:
  • Pagination:
    236, 246
  • Published proceedings:
  • Volume:
  • Editors:
    Hutchison D,Denazis S,Lefevre L,Minden GJ
  • ISBN-13:
  • Name of conference:
    7th International Working Conference on Active and Programmable Networks
  • Conference place:
    Sophia Antipolis, FRANCE
  • Conference start date:
  • Conference finish date:
  • Print ISSN:
  • Language:
  • Keywords:
    Generation Satelites, Manipulation of JPEG2000
  • Addresses:
    Sacks, L
    Dept Elect & Elect Engn
This paper has considers the issues which arise when considering the role of programmable and active networking in the context of satellite based telecommunications. The work presented here was initiated and funded by the ESTEC, ARTES 1 program. The brief was to undertake a “study addressing the use of Active and Programmable Networking in Space and Ground Segment, to improve the delivery of Multimedia Services over Satellite”. We motivate the plausibility of such using active networking in this context by considering the evolutionary path of telecommunications satellites and show the advantages of considering placing active components on the satellites. By considering factors such as the adaptive FEC, multiple, tuneable footprints with onboard routing or switching, the importance of on-board processing becomes more apparent to cope with emerging codecs and can to provide local adaptation to cope with thing like link capacity variation and congestion. To emphases the issues of adaptability, we have both used a codec which is very much in development (JPEG2000) and have explored how adapting to local conditions can be used to improve application performance in the face of degraded transport (down link) quality. This paper describes two approaches to manipulating JPEG2000 frames with programmable and active networks. The first approach is the use of transcoding and the second is intelligent dropping. These two approaches where considered, in particular, for possible deployment with space based platforms; specifically, communication satellites which are not only IP enabled but may host active components. Each approach offers different possibilities and may be suitable for solving overlapping but different problems.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers
Dept of Computer Science
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by