Bit Error Rate - Packet Error Rate

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)

    Error is a supposition that pleasure and pain, that intelligence, substance, life, are existent in matter. Error is neither Mind nor one of Mind’s faculties. Error is the contradiction of Truth. Error is a belief without understanding. Error is unreal because untrue. It is that which seemeth to be and is not. If error were true, its truth would be error, and we should have a self-evident absurdity—namely, erroneous truth. Thus we should continue to lose the standard of Truth.
    Mary Baker Eddy (1821–1910)

    This is the essential distinction—even opposition—between the painting and the film: the painting is composed subjectively, the film objectively. However highly we rate the function of the scenario writer—in actual practice it is rated very low—we must recognize that the film is not transposed directly and freely from the mind by means of a docile medium like paint, but must be cut piece-meal out of the lumbering material of the actual visible world.
    Sir Herbert Read (1893–1968)