Abstract
To improve the performance of communication channels in the future Generalized Frequency Division Multiplexing (GFDM) becomes a new method used to update the Filter Bank Multicarrier (FBMC) and Orthogonal Frequency Division Multiplexing (OFDM) methods. In this research, equalization used Minimum Mean Square Error (MMSE). The performance of this research was measured by the parameters of comparing the ratio of signal strength to noise (SNR) to bit error rate (BER) and channel capacity. The results of this research resulted in BER value obtained in GFDM QAM without MMSE in SNR 0 dB obtained a BER value of 0.413. Then at the SNR value of 25 dB get a value of 0.1645. Meanwhile, in GFDM system with MMSE in SNR 0 dB get BER value of 0.4799. Then, on SNR 25 dB get a BER value of 0.0184. GFDM QAM system with MMSE produces better value than GFDM QAM system without MMSE. In roll-off factor system testing when SNR 25 dB on roll-off factor 1 has a BER value of 0.5009, for roll-off factor 0.5 has a BER value of 0.02417. While in roll-off factor 0.3 has a value of BER 0.02356. The greater the roll-off factor value is higher BER value.
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