OFDM/OQAM adaptive pulse shaping

Orthogonal frequency division multiplexing (OFDM) capitalizes on the orthogonal properties inherent in various subcarriers to optimize spectral efficiency within the system. This technique stands as the foundational technology for forthcoming wireless communication transmission and multiple access methodologies. Although conventional OFDM systems effectively mitigate multipath interference through the addition of cyclic prefixes (CPs), CP-OFDM systems are not without their limitations: 1) OFDM systems inherently exhibit high sidelobes in the sinc function, rendering them susceptible to frequency offsets; and 2) while this characteristic aids in interference elimination, it concurrently diminishes the system's spectrum utilization.