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Optical Orthogonal Frequency Division Multiplexing (O-OFDM) provides major advantages in mitigating Group-Velocity Dispersion (GVD) in Single-Mode Fiber (SMF). Unfortunately, substantial dispersion is accumulated in long-haul transmission, leading to a longer Cyclic Prefix (CP). This effect sets some limitations on the overall throughput and the spectral efficiency. On the other hand, if the CP length...
OFDMA is the preferred multiple access technique to provide high data rate services in mobile environment due its resilience against multipath propagation impairment and flexibility to provide multi-rate data services. However, it also has issue with susceptibility to ICI (inter-carrier interference) caused by frequency offset and Doppler spread due to mobility. Thus, OFDMA with certain number of...
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