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We present a phase pre-distorted joint detection (JD) method to improve the system performance of uplink non-orthogonal multiple access (NOMA) in visible light communications. The optimal phase pre-distortion term was first computed based on the channel information of different users. We then pre-distort the users’ transmit signals with the optimal phase term to improve the system performance. The...
Two 8.3-Gb/s spectrally overlaid DDO-OFDM signals are successfully transmitted along 50-km SMF using optical power division multiplexing and received by a successive interference cancellation (SIC) receiver. Spectral efficiency is doubled with optimized optical modulation index and optical power division ratio.
We propose a phase pre-distortion method to improve the symbol-error-rate performance of non-orthogonal multiple access in visible light communications. Both theoretical analysis and experimental evaluation have been performed to prove its effectiveness.
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