Statistical modeling of single-photon avalanche diode receivers for optical wireless communications

Sarbazi, Elham and Safari, Majid and Haas, Harald (2018) Statistical modeling of single-photon avalanche diode receivers for optical wireless communications. IEEE Transactions on Communications, 66 (9). pp. 4043-4058. ISSN 0090-6778 (https://doi.org/10.1109/TCOMM.2018.2822815)

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Abstract

In this paper, a comprehensive analytical approach is presented for modeling the counting statistics of active quenching and passive quenching single-photon avalanche diode (SPAD) detectors. It is shown that, unlike ideal photon counting receiver for which the detection process is described by a Poisson arrival process, photon counts in practical SPAD receivers do not follow a Poisson distribution and are highly affected by the dead time caused by the quenching circuit. Using the concepts of renewal theory, the exact expressions for the probability distribution and moments (mean and variance) of photocounts in the presence of dead time are derived for both active quenching and passive quenching SPADs. The derived probability distributions are validated through Monte Carlo simulations and it is demonstrated that the moments match with the existing empirical models for the moments of SPAD photocounts. Furthermore, an optical communication system with on-off keying and binary pulse position modulation is considered and the bit error performance of the system for different dead time values and background count levels is evaluated.

  • Item type:Article
    ID code:84177
    Dates:
    Date
    Event
    14 September 2018
    Published
    12 April 2018
    Published Online
    18 March 2018
    Accepted
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:UNSPECIFIED
    Depositing user: Pure Administrator
    Date deposited:15 Feb 2023 11:22
    Last modified:26 Apr 2024 00:57
    URI:https://strathprints.strath.ac.uk/id/eprint/84177
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