Back to Search
Start Over
Physical Layer Security for Intelligent Reflecting Surface Assisted Two–Way Communications.
- Source :
- IEEE Communications Letters; Jul2021, Vol. 25 Issue 7, p2156-2160, 5p
- Publication Year :
- 2021
-
Abstract
- This letter investigates the exploitation of an intelligent reflecting surface (IRS) to communicate securely in a two-way network consisting of an untrusted user. In particular, the transmit powers and the phase shift at each element of the IRS are optimized to maximize the sum-secrecy rate, such that the IRS-reflected and non-IRS-reflected signals are added destructively at the untrusted user. The proposed iterative algorithm converges rapidly to a feasible solution of high accuracy with a few iterations. Numerical results demonstrate sum-secrecy rate gains up to 120% compared to naive or partially optimized schemes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10897798
- Volume :
- 25
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- IEEE Communications Letters
- Publication Type :
- Academic Journal
- Accession number :
- 152967823
- Full Text :
- https://doi.org/10.1109/LCOMM.2021.3068102