research-article

Covert Communications in Low-VHF/Microwave Heterogeneous Networks

Authors:

Fikadu T. Dagefu,

Predrag Spasojevic,

Chryssalenia KoumpouziAuthors Info & Claims

2022 IEEE Wireless Communications and Networking Conference (WCNC)

Pages 1970 - 1975

https://doi.org/10.1109/WCNC51071.2022.9771821

Published: 10 April 2022 Publication History

Abstract

In this paper, we explore covert communication in a heterogeneous network where a transmitter sends a confidential message to a receiver by utilizing two different radio frequency (RF) bands, low-very high frequency (low-VHF) and microwave frequency modalities. Since two RF modalities exhibit different characteristics in terms of channels and available bandwidths, it is important to efficiently leverage the modalities based on the wireless environment. Therefore, we develop a new algorithm that optimizes the transmit powers and bandwidths for the modalities and selects one modality with the goal of maximizing the detection error probability at a warden while guaranteeing a quality-of-service requirement of the receiver. We first derive a closed-form joint optimal power and bandwidth solution for a given modality, and then provide a modality selection method. From numerical simulations, it is validated that the proposed scheme achieves the optimal performance and the covertness can be enhanced by judiciously choosing one of the two modalities based on the channel condition.

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Cited By

Aggarwal RKong JMoore TChoi JSpasojevic PDagefu FKim YKim JKoushanfar FRasmussen K(2024)Covert Communications with Simultaneous Multi-Modal TransmissionProceedings of the 17th ACM Conference on Security and Privacy in Wireless and Mobile Networks10.1145/3643833.3656117(1-7)Online publication date: 27-May-2024
https://dl.acm.org/doi/10.1145/3643833.3656117

Index Terms

Covert Communications in Low-VHF/Microwave Heterogeneous Networks
1. Networks
  1. Network types
    1. Mobile networks
    2. Wireless access networks
2. Security and privacy
  1. Cryptography

Index terms have been assigned to the content through auto-classification.

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2022 IEEE Wireless Communications and Networking Conference (WCNC)

Apr 2022

2737 pages

Copyright © 2022.

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Published: 10 April 2022

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Cited By

Aggarwal RKong JMoore TChoi JSpasojevic PDagefu FKim YKim JKoushanfar FRasmussen K(2024)Covert Communications with Simultaneous Multi-Modal TransmissionProceedings of the 17th ACM Conference on Security and Privacy in Wireless and Mobile Networks10.1145/3643833.3656117(1-7)Online publication date: 27-May-2024
https://dl.acm.org/doi/10.1145/3643833.3656117

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