الفهرس 
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Abstract
The purpose of this dissertation is to purpose a new algorithm to show that system-performance of clustered discrete Fourier transform spread orthogonal frequency division multiplexing (clustered DFf-S-OFDM) using bit error rate and cubic metric is better than discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) using different signal modulation (16-QAM, QPSK, 64 QAM) .LTE up link supports non-contiguous, enable us to transmit on fragment frequency, so it improves efficiency compared to release LTE. Clustered discrete Fourier transform-spread orthogonal frequency division multiplexing (clustered DFT-S- OFDM) is used to realize the non-contiguous, because it has a good affinity with DFT-S-OFDM . To introduce clustered DFT-S-OFDM in a LTE-Advanced system, suppression of these out-of- band emissions is essential. A simple approach is to limit the maximum transmit power in the uplink power control (PC), i.e., an uplink PC with maximum power reduction (MPR). Therefore, the first objective of this study is to clarify the Bit Error Rate (BER) and Cubic Metric (CM) of clustered DFT-S-OFDM system, the second objective is to provide an algorithm suitable for clustered DFT-S-OFDM to judge performance of clustered DFT-S-OFDM vs DFT-S-OFDM.Simulation results show that the clustered DFT-S-OFDM improves bit error rate (BER) over DFf-S-OFDM.