Time-coordinated 4-SPAD receiver for optic wireless communication

Yu Mu; Chao Wang; Xiaoxiao Du; Ziwei Ye; Yingchen Song; Yijun Zhu

doi:10.1117/12.2640117

1 August 2022 Time-coordinated 4-SPAD receiver for optic wireless communication

Yu Mu, Chao Wang, Xiaoxiao Du, Ziwei Ye, Yingchen Song, Yijun Zhu

Proceedings Volume 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022); 122572E (2022) https://doi.org/10.1117/12.2640117
Event: 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 2022, Guangzhou, China

Abstract

In the optical wireless communication system, a reliable transmission channel can be achieved in the power restricted scene by using a single-photon avalanche diode (SPAD) receiver. However, the performance of SPAD is limited by dead time. This results in count loss and inter-slot interference (ISI), which degrades the communication performance. In this paper, a 4-channel time-gated scheme was proposed. In the scheme, time-gated SPAD receivers successively turned on by external gating signals to reduce the effective dead time of the receiving system and improve the signal-to-noise ratio. In addition, the 4 time-coordinated receivers scheme has better background light tolerance and better performance in intensive signal power condition than the 4 free-running SPADs receivers scheme.

Citation Download Citation

Yu Mu, Chao Wang, Xiaoxiao Du, Ziwei Ye, Yingchen Song, and Yijun Zhu "Time-coordinated 4-SPAD receiver for optic wireless communication", Proc. SPIE 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 122572E (1 August 2022); https://doi.org/10.1117/12.2640117

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