A T3 system has a 10-9 error rate (one error for every 109 bits transmitted). Compute the number of errors per minute.
The degree of errors encountered during data transmission over a
communication or network transmission.The higher the error rate,the
less reliable the connection will be.
Error rate:-
the number of bit errors is the number of received bits of a data
stream over a communication channel that have been altered due to
noise, interference, distortion or bit synchronization
errors.
Example: transmitted sequence:- 1 0 1 0 1 1 0 1 0 1
recieved sequence:- 1 0 0 1 1 1 0 1 0 0
Error ratio:- 3/10=0.3
Bit error rate(bit error ratio (BER)):
It is the number of bit errors produced by transmission of bit
sequence divided by the total number of transferred bits during a
studied time interval.
BER is a unitless performance measure, It is oftenly expressed as a
percentage.
Bit error probability (Pe):-
It is the expectation value of the BER.
The BER can be considered as an approximate estimate of the bit
error probability.
This estimate is accurate for a long time interval and a high
number of bit errors.
Formulas:-
BER=Errors/Total Number of Bits


A T3 system has a 10-9 error rate (one error for every 109 bits transmitted). Compute...
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