Phase Jitter Modeling for Uplink OFDMA

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Multicarrier (MC) systems, such as OFDMA (Orthogonal Frequency Division Multiple Access), which are quite developed in the literature, were shown to be the adequate solution for multipath transmission. However, even with these systems, synchronization errors can't be avoided. In this contribution we study the sensitivity of uplink OFDMA system to the phase jitter for both models proposed : the gaussian and the rayleigh models. By investigating the performance degradation of the OFDMA system, we point out that, first, the degradation depends, not only, on the phase jitter variance, but also, on the jitter power density function, and then, the rayleigh model gives better performance regarding the SNR degradation.
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