AI Article Synopsis
- The research presents a new method for generating high-order QAM photonic vector millimeter-wave signals using optical dual-single-sideband modulation and delta-sigma modulation, which helps tackle issues with nonlinear distortion in wireless communication.
- The study successfully demonstrates the generation of a 40 GHz 16384-QAM OFDM photonic vector mm-wave signal, showcasing its feasibility in practical applications.
- The proposed system was tested over a 25-km fiber and a 1-meter wireless link, achieving a bit error ratio that meets the hard-decision forward-error-correction threshold, indicating good signal integrity.
Article Abstract
We propose an optical dual-single-sideband (dual-SSB) modulated 16384-quadrature amplitude modulation (QAM) photonic vector millimeter-wave (mm-wave) signal generation scheme based on delta-sigma modulation (DSM). With the aid of the DSM, the severe nonlinear distortion of envelope detection for high-order QAM modulation signals in wireless communication can be effectively resolved. For the validation of our proposed scheme, we experimentally demonstrate the generation of a 40 GHz 16384-QAM orthogonal frequency division multiplexing (OFDM) photonic vector mm-wave signal and transmission over a 25-km standard single-mode fiber (SSMF), and a 1-m wireless link with the bit error ratio (BER) reaches the hard-decision forward-error-correction (HD-FEC) threshold of 3.8 × 10.
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| http://dx.doi.org/10.1364/OL.520250 | DOI Listing |
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