BIT ERROR RATIO (BER)

The number of erroneous bits divided by the total number of bits transmitted, received, or processed over some stipulated period. ( 188 ) Note 1: Examples of bit error ratio are (a) transmission BER, i.e., the number of erroneous bits received divided by the total number of bits transmitted; and (b) information BER, i.e., the number of erroneous decoded (corrected) bits divided by the total number of decoded (corrected) bits. Note 2: The BER is usually expressed as a coefficient and a power of 10; for example, 2.5 erroneous bits out of 100,000 bits transmitted would be 2.5 out of 10 5 or 2.5 × 10 -5 .