Browsing by Author "ENCA/ ZERDOUMI Zohra"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Candidate Waveforms in Future Wireless Communication Systems
    (University of M’sila, 2025-06-30) AOUINA Said; MELIANI Elmahdi; ENCA/ ZERDOUMI Zohra
    The rapid evolution of wireless communication systems has increased the need for advanced waveform designs that can support higher data rates, lower latency, and better spectral efficiency. Among several candidates, Universal Filtered Multicarrier (UFMC) has emerged as a promising solution due to its ability to minimize out-of-band emissions and operate effectively in asynchronous and fragmented spectrum scenarios. In this thesis, we evaluate UFMC in comparison to the conventional Orthogonal Frequency Division Multiplexing (OFDM), which has been the dominant waveform in 4G and 5G systems. The study includes a detailed simulation-based performance analysis using MATLAB. We investigate key performance metrics such as Power Spectral Density (PSD), Peak-to-Average Power Ratio (PAPR), Out-of-Band Emissions (OOBE), Bit Error Rate (BER), and Symbol Error Rate (SER) under various modulation schemes (4-QAM to 256-QAM) and a Rician fading channel. The Simulation results demonstrate that UFMC achieves better spectral containment, more stable PAPR behavior with high-order modulations, and improved OOBE suppression outperforming OFDM in several scenarios relevant to 5G and future 6G requirements. This work highlights UFMC’s advantages and limitations and confirms its potential as a strong waveform candidate for next-generation wireless systems.
  • Thumbnail Image
    ItemOpen Access
    Filter Bank Multicarrier Modulation Techniques for 5G Communication Systems
    (University of M’sila, 2025-06-30) Cheriat Mohamed; Achraf Ziam Saad Eddine; ENCA/ ZERDOUMI Zohra
    This thesis investigates multicarrier modulation techniques for 5G telecommunications, comparing Orthogonal Frequency Division Multiplexing (OFDM) and Filter Bank Multicarrier (FBMC). It addresses 4G limitations, such as spectral efficiency and interference, and evaluates FBMC’s potential for 5G. Using MATLAB simulations, the study compares power spectral density (PSD), peak-to-average power ratio (PAPR), and bit error rate (BER). Results show FBMC’s superior spectral efficiency and lower PAPR, positioning it as a strong 5G candidate, though OFDM’s simplicity is advantageous in some cases. Future research on FBMC is recommended to optimize 5G performance.