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Similar to the widely used orthogonal frequency division multiplexing systems, generalized frequency division multiplexing suffers from a high peak-to-average power ratio (PAPR). In this letter, we propose a data-independent precoder to minimize the variance of the instantaneous power (IP), subject to the constraint of unchanged average IP as a means for PAPR reduction. Simulation results show that...
Orthogonal frequency division multiple access (OFDMA), where different subcarriers are allocated to different users, has been adopted for the uplink of several standards and has attracted a great deal of attention as a result. However, OFDMA is highly sensitive to carrier frequency offset (CFO) between the transmitter and receiver. In the uplink, different carrier frequency offsets due to different...
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