A Filter Bank Multi-Carrier (FBMC) System with Multi-Carrier CDMA

FBMC displays superior spectral qualities when compared to OFDM. This research introduces an FBMC setup incorporating Multi- Carrier Code Division Multiple Access (MC- CDMA) to minimize both the Bit Error Rate (BER and Peak-to-Average Power Ratio (PAPR), thereby boosting overall system efficiency. Initially the input signal undergoes a spreading procedure to translate it into codes, subsequently transmitted through the channel using the O-QAM modulation scheme. Upon reception, these transmitted codes undergo demodulation and de-spreading. Initially deployed in a Single Carrier (SC) system, FBMC with CDMA is later expanded to a Multi-Carrier (MC) system. An assessment of BER performance was carried out for FBMC without signal spreading and FBMC with CDMA. This evaluation entailed BER calculations across various Signal-to-Noise Ratios (SNR), revealing a decrease in BER in comparison to FBMC without spreading. This decrease was consistent across the range of tested SNR values, illustrating the effectiveness of integrating CDMA in enhancing the FBMC system's performance.