The packet error rate (PER) is the number of incorrectly received data packets divided by the total number of received packets. A packet is declared incorrect if at least one bit is erroneous. The expectation value of the PER is denoted packet error probability pp, which for a data packet length of N bits can be expressed as
- ,
assuming that the bit errors are independent of each other. For small bit error probabilities, this is approximately
Similar measurements can be carried out for the transmission of frames, blocks, or symbols.
Read more about this topic: Bit Error Rate
Famous quotes containing the words packet, error and/or rate:
“we know our end
A packet of worm-seed, a garden of spent tissues.”
—Allen Tate (1899–1979)
“It is an old error of man to forget to put quotation marks where he borrows from a woman’s brain!”
—Anna Garlin Spencer (1851–1931)
“I don’t know but a book in a man’s brain is better off than a book bound in calf—at any rate it is safer from criticism. And taking a book off the brain, is akin to the ticklish & dangerous business of taking an old painting off a panel—you have to scrape off the whole brain in order to get at it with due safety—& even then, the painting may not be worth the trouble.”
—Herman Melville (1819–1891)