Modeling Application Based Forward Error Correction
نویسندگان
چکیده
A FEC group consists of N packets with k of them being data packets and N − k carrying redundant data. The coding efficiency of the FEC scheme is therefore k/N , and the redundancy is (N − k)/N . Data packets that are lost during transmission can be reconstructed if and only if a combination of at least k data and check packets of the N packet group are received correctly. When fewer than k packets of a group are received correctly, the data packets that are received can be added to the playback buffer, but any check packets that are received are simply discarded.
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