Block Error Rate , BLER (skrót)

Block Error Rate (BLER) is a ratio of the number of erroneous blocks to the total number of blocks received on a digital circuit.

Block error rate (BLER) is used for W-CDMA performance requirements tests (demodulation tests in multipath conditions, etc.).

Block Error Rate (BLER) is used in measuring the error rate when extracting data frames from a Compact Disc (CD).

The following code calculates the block error rate for Hamming(7,4) code with maximum likelihood detector in AWGN channel by Monte-Carlo method:

Block Error Rate (BLER) is used in LTE/4G technology to know the in-sync or out-of-sync indication during radio link monitoring(RLM).

While Shannon could only prove that the block error probability can not become arbitrarily small if the transmission rate is above the channel capacity, Wolfowitz proved that the block error rate actually converges to one.

There are several free CD-quality diagnostic programs, such as PlexTools Professional, Kprobe, and CD-DVD Speed, which can be used to access the error-statistic information in a CD/DVD drive and to generate a plot displaying the variation of the block error rate as function of playtime.