Detection of high spectral efficiency 16/32QAM-OFDMA downlink signals using self mixing method and its application in PON

Qiming Yang; Yufeng Shao; Anrong Wang; Linfang Yi; Qing Tian; Ni Yu; Chong Li; Peng Chen; Yanlin Li; Shuanfan Liu; Renjie Zuo; Jie Yuan

doi:10.1117/12.3010309

20 October 2023 Detection of high spectral efficiency 16/32QAM-OFDMA downlink signals using self mixing method and its application in PON

Qiming Yang, Yufeng Shao, Anrong Wang, Linfang Yi, Qing Tian, Ni Yu, Chong Li, Peng Chen, Yanlin Li, Shuanfan Liu, Renjie Zuo, Jie Yuan

Author Affiliations +

Proceedings Volume 12814, Third International Conference on Green Communication, Network, and Internet of Things (CNIoT 2023); 1281407 (2023) https://doi.org/10.1117/12.3010309
Event: Third International Conference on Green Communication, Network, and Internet of Things (CNIoT 2023), 2023, Chongqing, China

Abstract

A passive optical network (PON) fiber access system with two types of high spectral efficiency orthogonal frequency division multiple access (OFDMA) downlink signals is designed and demonstrated. In this scheme, 50Gbit/s 16/32 quadrature amplitude modulation (QAM) -OFDMA-PON downstream signals are transmitted over 20 km single-mode fiber (SMF) and detected using self mixing detection method, in which 256 subcarriers are divided into four sub-channels for multiple users access applications. The electrical frequency spectrums, optical spectrums, constellation diagrams, and bit error rate (BER) performance of the downstream signals are analyzed. The results show that under different received optical powers, we can select a certain sub-channel with the lowest BER, and the system also supports the dynamic selection of the appropriate signals type between 16QAM-OFDM and 32QAM-OFDM according to different users bandwidth requirements.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qiming Yang, Yufeng Shao, Anrong Wang, Linfang Yi, Qing Tian, Ni Yu, Chong Li, Peng Chen, Yanlin Li, Shuanfan Liu, Renjie Zuo, and Jie Yuan "Detection of high spectral efficiency 16/32QAM-OFDMA downlink signals using self mixing method and its application in PON", Proc. SPIE 12814, Third International Conference on Green Communication, Network, and Internet of Things (CNIoT 2023), 1281407 (20 October 2023); https://doi.org/10.1117/12.3010309

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