Journal
IEEE COMMUNICATIONS MAGAZINE
Volume 56, Issue 11, Pages 131-137Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MCOM.2017.1700588
Keywords
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Funding
- Electronic Warfare Research Center at the Gwangju Institute of Science and Technology (GIST)
- Defense Acquisition Program Administration (DAPA)
- Agency for Defense Development (ADD)
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As an alternative to complex cryptographic techniques, PLS is emerging as a promising paradigm to protect wireless communication systems from eavesdropping attacks by exploiting the physical characteristics of the wireless channels. Among various PLS approaches, the one based on cooperative communication is favorable and has received a lot of interest from the research community. Although PLS schemes with half-duplex relays have been extensively researched, the issue of PLS in cooperative systems with full-duplex (FD) relays is far from being comprehensively understood. In this article, we first present the state of the art on PLS approaches proposed for ED cooperative systems. We then provide a case study in which a source-based jamming scheme is proposed to enhance the secrecy performance of a cooperative system with an untrusted FD relay. Finally, we outline several interesting yet challenging future research problems in this topic.
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