Interference Mitigation Using Uplink Power Control in 5G Relay-Based Heterogeneous Networks

Jamil Sultan, Waheb A. Jabbar, Nashwan S. Al-Thobhani, Abdulaziz Al-Hetar, Mobarak Saif

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

    3 Citations (SciVal)

    Abstract

    Heterogeneous network (HetNet) is an attractive solution for future cellular networks with high data rate and coverage requirements. In HetNets, small cells such as micro cells, pico cells, femto cells and relay node (RN) are added to the network of macro cells in the same region. A large number of low power RNs produces new cell edges with significant intra-cell and inter-cell interferences. In the uplink (UL) scenarios of time-division based HetNets with RN, the user equipment (UE) desired signal may be interfered by the transmissions of the co-channel UEs during the first time slot and by the transmissions of the co-channel UEs or RNs during the second time slot. The interference caused by the RNs may significantly degrade the UE signal. UL transmission power control (PC) is essential for mitigating interference and, as a result, enhancing the cell edge and overall system performance. This research proposes a PC algorithm in order to mitigate the UL interference in 5g relay-based HetNets. This research also investigates the UL performance of HetNets when PC is applied at the RNs. Simulation results indicate that UL PC at the RNs greatly reduces average interference and improves average UL signal-to-interference-plus-noise ratio (SINR) and average UL end-to-end throughput compared to the situation in which UL PC is not implemented.
    Original languageEnglish
    Title of host publication2022 2nd International Conference on Emerging Smart Technologies and Applications, eSmarTA 2022
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781665461818
    ISBN (Print)9781665461818
    DOIs
    Publication statusPublished (VoR) - 2022
    Event2nd International Conference on Emerging Smart Technologies and Applications, eSmarTA 2022 - Ibb, Yemen
    Duration: 25 Oct 202226 Oct 2022

    Publication series

    Name2022 2nd International Conference on Emerging Smart Technologies and Applications, eSmarTA 2022

    Conference

    Conference2nd International Conference on Emerging Smart Technologies and Applications, eSmarTA 2022
    Country/TerritoryYemen
    CityIbb
    Period25/10/2226/10/22

    Keywords

    • 5G
    • HetNets
    • Power control
    • Relay Node (RN)
    • Ultra Densification Network (UDN)

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