Abstract
In this letter, we propose a novel and straightforward scheme for Q-band (33-50 GHz) millimeter-wave signal generation enabled by a Mach-Zehnder modulator (MZM)-based joint algorithm, which combines probabilistic shaping (PS) and precoding technology, to enhance the anti-interference ability of the transmission system. Based on the proposed scheme, we experimentally demonstrate the generation and transmission of 1.4-Gbaud 46-GHz PS-16-quadrature-amplitude-modulation (PS-16QAM) vector signals, showcasing improved bit-error-ratio (BER) in both standard single-mode fiber (SSMF) and wireless transmission cases. The proposed scheme exhibits a clear advantage in terms of nonlinear interference suppression and satisfies the hard-decision forward-error-correction (HD-FEC) threshold with a BER of 3.8 × 10-3 in radio-over-fiber (RoF) systems.
| Original language | English |
|---|---|
| Article number | 5501105 |
| Journal | IEEE Photonics Journal |
| Volume | 15 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Aug 2023 |
Keywords
- Millimeter-wave (MMW)
- precoding
- probabilistic shaping (PS)
- radio-over-fiber (RoF)
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