A Hermitian symmetry based OFDM signal transmitter for digitized radio-over-fiber transmission

Yi Guo; Jia Ye; Lianshan Yan; Wei Pan; Bin Luo; Peng Li

doi:10.1117/12.2504776

6 February 2019 A Hermitian symmetry based OFDM signal transmitter for digitized radio-over-fiber transmission

Yi Guo, Jia Ye, Lianshan Yan, Wei Pan, Bin Luo, Peng Li

Proceedings Volume 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology; 1084202 (2019) https://doi.org/10.1117/12.2504776
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

In this paper, a Hermitian symmetry based orthogonal frequency division multiplexing (HS-OFDM) signal transmitter is proposed. It can be used in a digitized radio-over-fiber (DRoF) system to reduce the system complexity by transmitting a real digital sequence. In this HS-OFDM transmitter, differential pulse code modulation (DPCM) schemes are used instead of the traditional pulse code modulation (PCM) to quantify the bandpass sampled signals, which can improve the signal-to-quantization noise ratio (SQNR) by 4~7 dB. Moreover, a high-order pulse amplitude modulation (PAM) is utilized to increase the spectral efficiency of the DRoF system. Simulation results show that the digital code with PAM- 16 can improve the spectral efficiency by 3 times with the same error vector magnitude (EVM) performance.

Citation Download Citation

Yi Guo, Jia Ye, Lianshan Yan, Wei Pan, Bin Luo, and Peng Li "A Hermitian symmetry based OFDM signal transmitter for digitized radio-over-fiber transmission", Proc. SPIE 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology, 1084202 (6 February 2019); https://doi.org/10.1117/12.2504776

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