Joint group physical-layer authentication and confidential beamforming proposed for HAPS networks
Original title: Group Physical-Layer Authentication and Confidential Beamforming in Non-Terrestrial Networks
The method superimposes a secret tag on private data to achieve authentication and secrecy under power constraints.
Coordinated HAPS networks require group authentication and data protection. The paper uses a superimposed secret tag for joint physical-layer authentication and confidential beamforming. It derives exact error expressions, establishes energy floors, and optimizes the design using semidefinite relaxation. Numerical results indicate significant SINR and power improvements.
- Increasing tag length from 16 to 64 symbols reduces required tag SINR by 7.16 dB.
- Joint beam design reduces mean transmit power by 27.4% relative to fixed-tag baseline.
- Authentication guarantee requires fresh secret tags and excludes relays.
- Legitimate receiver removes tag via orthogonal projection.
- Spatial condition bounds colluding eavesdroppers SINR.
From the original article
1 min read at arxiv.orgCoordinated high-altitude platform station (HAPS) networks need to authenticate group responses and protect private data under shared power constraints. This paper studies joint group physical-layer authentication (PLA) and confidential beamforming using a fresh secret tag superimposed on private data.
By Parsa Rajabi · arxiv.org
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.