Impulsive Noise Mitigation in NOMA-OFDM Systems Using Time-Domain Interleaving for Smart Grid Applications

Welelaw Yenieneh Lakew, Arafat Al-Dweik, Mohamed A. Abou-Khousa

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Advanced and efficient communication techniques play a crucial role in modern smart grid technology. However, smart grid communication systems are prone to both multipath fading and impulsive noise (IN) impairments. This paper presents time-domain interleaving (TDI) aided mitigation of an IN in a hybrid system that uses non-orthogonal multiple access (NOMA) and orthogonal frequency division multiplexing (OFDM) techniques over Rayleigh block-fading multipath channel. Semi-analytical bit error rate (BER) expressions are derived using TDI in the presence of IN for two and three downlink user scenarios using the minimum mean squared error (MMSE) and zero-forcing (ZF) equalizers. Computer simulations are used to verify the semi-analytical expressions derived. The simulation results show that using TDI significantly mitigates the performance degradation in the BER of NOMA-OFDM systems impaired by both IN and multipath fading effects.

    Original languageBritish English
    Title of host publication2024 IEEE 8th Energy Conference, ENERGYCON 2024 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9798350382150
    DOIs
    StatePublished - 2024
    Event8th IEEE International Energy Conference, ENERGYCON 2024 - Doha, Qatar
    Duration: 4 Mar 20247 Mar 2024

    Publication series

    Name2024 IEEE 8th Energy Conference, ENERGYCON 2024 - Proceedings

    Conference

    Conference8th IEEE International Energy Conference, ENERGYCON 2024
    Country/TerritoryQatar
    CityDoha
    Period4/03/247/03/24

    Keywords

    • equalization
    • impulsive noise
    • interleaving
    • NOMA
    • OFDM
    • smart grid communications

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