Improving Physical-Layer Security in Wireless Communications Using Diversity Techniques

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Security
Format: PDF
Due to the broadcast nature of radio propagation, the wireless transmission can be readily overheard by unauthorized users for interception purposes and is thus highly vulnerable to eavesdropping attacks. To this end, physical-layer security is emerging as a promising paradigm to protect the wireless communications against eavesdropping attacks by exploiting the physical characteristics of wireless channels. This paper is focused on the investigation of diversity techniques to improve the physical layer security, differing from the conventional artificial noise generation and beamforming techniques which typically consume additional power for generating artificial noise and exhibit high implementation complexity for beamformer design.
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