Abstract:Transmission capacity and receiver sensitivity of an intensity-modulation direct detection (IM-DD) optical discrete multi-tone (DMT) system can be improved by using the probabilistically shaping (PS) technique. However, different probabilistic distributions will be required owing to the unbalanced signal-to-noise ratio (SNR) among data-carrying subcarriers (SCs) induced by the imperfect frequency response of optical/electrical devices, which can increase the implementation complexity of the PS-DMT transceiver.… Show more
“…Y. Liu et al investigated signal pre-processing schemes for SNR equalization in short-reach probabilistically shaped discrete multitone (DMT) transmission systems. The proposed fast Walsh-Hadamard transform (WHT)-based pre-distortion scheme offers a receiver sensitivity gain of 1 dB [13].…”
Photonics has emerged as a crucial enabler for various emerging applications in communication and sensing, revolutionizing industries such as data centers, autonomous driving, 5G wireless networks, cloud computing, the IoT, and virtual reality [...]
“…Y. Liu et al investigated signal pre-processing schemes for SNR equalization in short-reach probabilistically shaped discrete multitone (DMT) transmission systems. The proposed fast Walsh-Hadamard transform (WHT)-based pre-distortion scheme offers a receiver sensitivity gain of 1 dB [13].…”
Photonics has emerged as a crucial enabler for various emerging applications in communication and sensing, revolutionizing industries such as data centers, autonomous driving, 5G wireless networks, cloud computing, the IoT, and virtual reality [...]
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