Khandaker, MRA;
Masouros, C;
Wong, K-K;
(2018)
Constructive Interference Based Secure Precoding: A New Dimension in Physical Layer Security.
IEEE Transactions on Information Forensics and Security
, 13
(9)
10.1109/TIFS.2018.2815541.
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Abstract
Conventionally, interference and noise are treated as catastrophic elements in wireless communications. However, it has been shown recently that exploiting known interference constructively can even contribute to signal detection ability at the receiving end. This paper exploits this concept to design artificial noise (AN) beamformers constructive to the intended receiver (IR) yet keeping AN disruptive to possible eavesdroppers (Eves). The scenario considered here is a multiple-input single-output (MISO) wiretap channel with multiple eavesdroppers. Both perfect and imperfect channel information have been considered. The main objective is to improve the receive signal-to-interference and noise ratio (SINR) at IR through exploitation of AN power in an attempt to minimize the total transmit power, while confusing the Eves. Numerical simulations demonstrate that the proposed constructive AN precoding approach yields superior performance over conventional AN schemes in terms of transmit power as well as symbol error rate (SER).
| Type: | Article |
|---|---|
| Title: | Constructive Interference Based Secure Precoding: A New Dimension in Physical Layer Security |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TIFS.2018.2815541 |
| Publisher version: | http://doi.org/10.1109/TIFS.2018.2815541 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ |
| Keywords: | cs.IT, cs.IT, math.IT |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1535168 |
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