Xu, Hao;
Wong, Kai-Kit;
New, Wee Kiat;
Li, Guyue;
Ghadi, Farshad Rostami;
Zhu, Yongxu;
Jin, Shi;
... Zhang, Yangyang; + view all
(2024)
Coding-Enhanced Cooperative Jamming for Secret Communication in Fluid Antenna Systems.
IEEE Communications Letters
10.1109/lcomm.2024.3418338.
(In press).
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Abstract
This letter investigates the secret communication problem for a fluid antenna system (FAS)-assisted wiretap channel, where the legitimate transmitter transmits an information-bearing signal to the legitimate receiver, and at the same time, transmits a jamming signal to interfere with the eavesdropper (Eve). Unlike the conventional jamming scheme, which usually transmits Gaussian noise that interferes not only with Eve but also with the legitimate receiver, in this letter, we consider that encoded codewords are transmitted to jam Eve. Then, by employing appropriate coding schemes, the legitimate receiver can successfully decode the jamming signal and then cancel the interference, while Eve cannot, even if it knows the codebooks. We aim to maximize the secrecy rate through port selection and power control. Although the problem is non-convex, we show that the optimal solution can be found. Simulation results show that by using the FAS technique and the proposed jamming scheme, the secrecy rate of the system can be significantly increased.
| Type: | Article |
|---|---|
| Title: | Coding-Enhanced Cooperative Jamming for Secret Communication in Fluid Antenna Systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/lcomm.2024.3418338 |
| Publisher version: | http://dx.doi.org/10.1109/lcomm.2024.3418338 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Jamming, Transmitting antennas, Gaussian noise, Fluids, Receiving antennas, Power control, Wireless networks |
| 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/10194087 |
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