Journal
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume 8, Issue 6, Pages 1700-1703Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2019.2937859
Keywords
TDD; security; repetition coding; jamming
Categories
Funding
- National Nature Science Foundation of China [61431011]
- Key Research and Development Program of Shannxi Province [2017ZDXM-GY-012]
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In this letter, we study the secure transmission in the wireless single-antenna time division duplexing (TDD) system when there is a passive eavesdropper. A joint artificial noise and repetition coding scheme is designed, in which the artificial noise can be removed only by the legitimate receiver instead of the eavesdropper. We prove that by using the proposed scheme, the capacity of the wiretap channel is limited by an upper bound, and the achievable secrecy rate can be maximized by power allocation. Finally, simulation results are supplied to corroborate the theoretical analysis.
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