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In cellular communication standards Long-Term Evolution (LTE), LTE-Advanced espoused single carrier-repeat division different access (SC-FDMA) which has been employed for uplink correspondence. By virtue of minor signal envelope dangers in SC-FDMA has slight top to average power extent (PAPR) as well as cycle bumble rate (BER) that is variety from OFDMA but there is scope to curtail the PAPR in SC-FDMA. The several techniques to curtail PAPR in single carrier FDMA current systems which are convoluted, or they essential side information to be conferred. The SC-FDMA receiver needs equalization which are zero forcing (ZF), minimum mean square equalizer (MMSE)to trade-off the complexity and execution. A projected nonlinear companding function (NCF) considering Wonderful capacity performs better than Trapezoidal ability, to decrease the PAPR and moreover BER under Q-PSK and 16-QAM of the Single Carrier FDMA system. Computer simulations gives that the expected method decides better than the other function slikeµ-guideline companding function. Index Terms: BER, MMSE, NCF, OFDMA, PAPR, SC-FDMA, ZF.