Date of Award

8-1-2023

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Electrical and Computer Engineering

Dissertation/Thesis Chair

Dola Saha

Committee Members

Aveek Dutta, Hany Elgala, Yalin Sagduyu

Subject Categories

Electrical and Electronics

Abstract

Spectrum access in the next-generation wireless networks will be congested, competitive, and vulnerable to malicious intents of strong adversaries. This motivates us to rethink secure wireless communication in a zero-trust electromagnetic environment. Classical cryptography is an add-on feature that provides semantic security between trusted partners at higherlayers. However, cryptography ignores cross-layer interaction with physical layer which is required to enhance the secrecy level of the transmitted waveform. Moreover, cryptographic schemes might no longer be secure in the quantum era. Physical layer security (PLS) is introduced as a complement to cryptography, where security is provided in the physical layer using the channel state information (CSI) between the trusted partners. Although PLS can theoretically provide perfect secrecy, it might be impractical in many scenarios due to the constraints imposed on adversary’s reception.

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