Synchronization and FPGA realization of fractional-order Izhikevich neuron model

Mohammed F. Tolba, Abdulaziz H. Elsafty, Mina Armanyos, Lobna A. Said, Ahmed H. Madian, Ahmed G. Radwan

    Research output: Contribution to journalArticlepeer-review

    53 Scopus citations

    Abstract

    This paper generalizes the Izhikevich neuron model in the fractional-order domain for better modeling of neuron dynamics. Accurate and computationally efficient numerical techniques such as non-standard finite difference (NSFD) scheme is used to solve the neuron system in the fractional-order domain for different cases. Neuron synchronization plays an important role in the process of information exchange among coupled neurons. The general formula for the synchronization of different Izhikevich neurons is proposed. Also, the synchronization of two and three neurons are studied at different fractional orders. Furthermore, the fractional-order regular spiking neuron of Izhikevich model is implemented on Xilinx (XC5VLX30T) Virtex 5 FPGA kit using only combinational logic. FPGAs are known for their reconfigurability and parallelism which makes them suitable for large-scale neural network simulations.

    Original languageBritish English
    Pages (from-to)56-69
    Number of pages14
    JournalMicroelectronics Journal
    Volume89
    DOIs
    StatePublished - Jul 2019

    Keywords

    • FPGA
    • Fractional order
    • Izhikevich model
    • Neuron synchronization
    • Non-standard finite difference

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