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Ensuring the security of unmanned aerial vehicle (UAV)-enabled mobile-edge computing (MEC) networks employing terahertz (THz) backscatter communication is essential. To address this, this work studies the Physical Layer Security (PLS) performance of an MEC system where a UAV supports IoT user (IU) in performing their computations using THz-band backscatter communications. The considered system consists of several resource-constrained Internet of Things (IoT) devices offloading tasks to a UAV with an MEC server via THz backscatter communication by applying Time Division Multiple Access (TDMA) scheme, while a passive eavesdropper may be present. To reduce the risk of eavesdropping, a friendly jammer is chosen randomly from the set of remaining users, to transmit artificial noise directed at the eavesdropper. The simulation results based on Average Secrecy Capacity (ASC) and Secrecy Successful Computation Probability (SSCP) reveal that the jamming and large bandwidth offered by the THz band can significantly enhance the secrecy capabilities of the proposed system.

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Secure Offloading for Terahertz-Band UAV-Aided MEC Backscatter Communication Networks

  • 会议论文

  • 发表日期：

    2026年

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  • Anh-Tuan Tran,
  • Quang Nhat Tran,
  • Xuan An Bui,
  • Van Chien Nguyen,
  • Dac-Binh Ha

摘要

Ensuring the security of unmanned aerial vehicle (UAV)-enabled mobile-edge computing (MEC) networks employing terahertz (THz) backscatter communication is essential. To address this, this work studies the Physical Layer Security (PLS) performance of an MEC system where a UAV supports IoT user (IU) in performing their computations using THz-band backscatter communications. The considered system consists of several resource-constrained Internet of Things (IoT) devices offloading tasks to a UAV with an MEC server via THz backscatter communication by applying Time Division Multiple Access (TDMA) scheme, while a passive eavesdropper may be present. To reduce the risk of eavesdropping, a friendly jammer is chosen randomly from the set of remaining users, to transmit artificial noise directed at the eavesdropper. The simulation results based on Average Secrecy Capacity (ASC) and Secrecy Successful Computation Probability (SSCP) reveal that the jamming and large bandwidth offered by the THz band can significantly enhance the secrecy capabilities of the proposed system.