The results show that the SCMA-OCDM scheme gets a receiver sensitivity of 0.8 dB at a bit error rate (BER) of 3.8 脳 103, compared with SCMA-OFDM. Because of peak to average power ratio (PAPR), the polar coded S
In this paper, a SCMA-OCDM multi-core fiber transmission system based on chaotic system is proposed for next-generation passive optical networks (PON). The whole encryption process includes chaotic codebook design and frequency domain time domain block scrambling. A 49.42 Gb/s encrypted OCDM signal...