Coding gain: Difference between revisions

Revision as of 04:10, 18 April 2014

Revision as of 04:15, 18 April 2014

Line 3:

==Example==

If the uncoded [[BPSK]] system in [[AWGN]] environment has a [[Bitbit error rate]] (BER) of 10<mathsup>10^{-2}−2</mathsup> at the SNR level 4&nbsp;[[decibel|dB]], and the corresponding coded (''e.g.'', [[BCH code|BCH]]) system has the same BER at an SNR level of 2.5dB5&nbsp;dB, then we say the ''coding gain'' = 4dB-{{nowrap|1=4 dB − 2.5dB5 dB = 1.5dB5 dB}}, due to the code used (in this case BCH).

==Power-limited regime==