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by mpoloton 2781 days ago
You can have a look at Tornado codes[1]. These codes are also based on LT codes and their patent seems to be no longer in effect.

For a completely open and free alternative for application-level forward erasure correction (AL-FEC) codes, checkout OpenFEC[2].

1 - https://en.wikipedia.org/wiki/Tornado_code 2 - http://openfec.org