Figure P17.13 compares the bit error rate (BER) performance of BPSK transmission over an AWGN channel with and without error control coding. a. At a BER of 10?5 what is the SNR required to transmit bits over the channel without coding? b. What is the SNR required to obtain BER 10?5 over the channel with coding employed? c. The coding gain is defined as the difference between the SNRs required to obtain a certain BER using an uncoded and a coded system. The coding gain represents the reduction in signal power when using coding to achieve the same level of performance as that of a scheme without coding. What is the coding gain of this coding scheme at a BER 10?5?
Analysis:
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