relationship between ber and snr

Hi

Who knows the relationship between SNR and BER in a receiver? I think this relationship is depended on modulation type. Could anybody explain it?

TX

Take a look at the book of Proakis: "Digital Communications"

BER vs SNR for different modulations

Can you explain BER for me?

http://en.wikipedia.org/wiki/Bit_error_probability

In telecommunication, an error ratio is the ratio of the number of bits, elements, characters, or blocks incorrectly received to the total number of bits, elements, characters, or blocks sent during a specified time interval.

The most commonly encountered ratio is the bit error ratio (BER) - also sometimes referred to as bit error rate.

Hi

attach some paper that can help u!

David