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- Raptor_code abstract "In computer science, raptor codes (rapid tornado; see Tornado codes) are the first known class of fountain codes with linear time encoding and decoding. They were invented by Amin Shokrollahi in 2000/2001 and were first published in 2004 as an extended abstract. Raptor codes are a significant theoretical and practical improvement over LT codes, which were the first practical class of fountain codes.Raptor codes, as with fountain codes in general, encode a given message consisting of a number of symbols, k, into a potentially limitless sequence of encoding symbols such that knowledge of any k or more encoding symbols allows the message to be recovered with some non-zero probability. The probability that the message can be recovered increases with the number of symbols received above k becoming very close to 1, once the number of received symbols is only very slightly larger than k. For example, with the latest generation of Raptor codes, the RaptorQ codes, the chance of decoding failure when k symbols have been received is less than 1%, and the chance of decoding failure when k+2 symbols have been received is less than one in a million. A symbol can be any size, from a single byte to hundreds or thousands of bytes.Raptor codes may be systematic or non-systematic. In the systematic case, the symbols of the original message are included within the set of encoding symbols. An example of a systematic raptor code is the code defined by the 3rd Generation Partnership Project for use in mobile cellular wireless broadcast and multicast and also used by DVB-H standards for IP datacast to handheld devices (see external links). The Raptor codes in these standards is defined also in IETF RFC 5053. The most advanced version of a practical Raptor code is RaptorQ defined in IETF RFC 6330.Online codes are another example of a non-systematic raptor code.".
- Raptor_code wikiPageExternalLink 26346.htm.
- Raptor_code wikiPageExternalLink 01638543.pdf?isnumber=34354&prod=JNL&arnumber=1638543&arSt=2551&ared=2567&arAuthor=Shokrollahi%2C+A..
- Raptor_code wikiPageExternalLink rfc5053.
- Raptor_code wikiPageExternalLink rfc6330.
- Raptor_code wikiPageExternalLink www.3gpp.org.
- Raptor_code wikiPageExternalLink technology.htm.
- Raptor_code wikiPageExternalLink www.dvb.org.
- Raptor_code wikiPageExternalLink raptor-code-rfc.
- Raptor_code wikiPageExternalLink ?option=rfc_search&rfc_search=5053.
- Raptor_code wikiPageExternalLink ?option=rfc_search&rfc_search=6330.
- Raptor_code wikiPageID "3340191".
- Raptor_code wikiPageLength "6969".
- Raptor_code wikiPageOutDegree "25".
- Raptor_code wikiPageRevisionID "682672446".
- Raptor_code wikiPageWikiLink 3GPP.
- Raptor_code wikiPageWikiLink Amin_Shokrollahi.
- Raptor_code wikiPageWikiLink Category:Coding_theory.
- Raptor_code wikiPageWikiLink Computer_science.
- Raptor_code wikiPageWikiLink DVB-H.
- Raptor_code wikiPageWikiLink Encoding_symbol.
- Raptor_code wikiPageWikiLink Erasure_code.
- Raptor_code wikiPageWikiLink Exclusive_or.
- Raptor_code wikiPageWikiLink Fountain_code.
- Raptor_code wikiPageWikiLink Gaussian_elimination.
- Raptor_code wikiPageWikiLink Gray_code.
- Raptor_code wikiPageWikiLink Hamming_code.
- Raptor_code wikiPageWikiLink High_density_parity_check_code.
- Raptor_code wikiPageWikiLink Low-density_parity-check_code.
- Raptor_code wikiPageWikiLink Luby_transform_code.
- Raptor_code wikiPageWikiLink Michael_Luby.
- Raptor_code wikiPageWikiLink Mobile_phone.
- Raptor_code wikiPageWikiLink Online_codes.
- Raptor_code wikiPageWikiLink Tornado_code.
- Raptor_code wikiPageWikiLinkText "Raptor code".
- Raptor_code wikiPageWikiLinkText "raptor code".
- Raptor_code wikiPageUsesTemplate Template:Reflist.
- Raptor_code subject Category:Coding_theory.
- Raptor_code hypernym Class.
- Raptor_code type Encoding.
- Raptor_code comment "In computer science, raptor codes (rapid tornado; see Tornado codes) are the first known class of fountain codes with linear time encoding and decoding. They were invented by Amin Shokrollahi in 2000/2001 and were first published in 2004 as an extended abstract.".
- Raptor_code label "Raptor code".
- Raptor_code sameAs Q7294373.
- Raptor_code sameAs m.096nr3.
- Raptor_code sameAs Q7294373.
- Raptor_code wasDerivedFrom Raptor_code?oldid=682672446.
- Raptor_code isPrimaryTopicOf Raptor_code.