Simulated bit-error-rate (BER) for the decoding performance of a receiver corresponding to a proposed transmission scheme.
With continuing advancements in wireless communication systems and emerging applications of Internet-of-Things (IoT) devices, there is an urgent need to develop physical-layer (PHY) focused secure communication schemes to avoid high computational and battery burdens from cryptographic strategies.
Researchers at Rutgers University proposed novel transmission architectures to enhance PHY security through the utilization of metamaterial (MTM) leaky-wave antennas (LWA). The secure schemes are devised to accomplish the functionalities of 1D and 2D directional modulation (DM) transmitters for orthogonal frequency-division multiplexing (OFDM) and non-contiguous (NC) OFDM transmissions, while enjoying the implementation benefits of MTM-LWAs. Specifically, they have for the first time put forth transmitter architectures based on the idea of time-modulated MTM-LWA as a promising solution for PHY security. A prototype of time-modulated array (TMA) containing MTM- LWAs was designed and developed, in which both simulated and measured results for the bit-error-rate (BER) show that the proposed MTM-TMA can preserve the signal in desired directions while distorting it in all other angles in 2D space. Numerical simulations show that even when an adversary employs sophisticated state-of-the-art deep learning-based attacks, the proposed transmission schemes are resistant to these attacks and reliably guarantee system security.
- Provides compact, integrated, and cost-effective antenna architectures
- No processing overhead required as would be needed for encryption-based security
- Two-dimensional beam steering
- High BER for direction other than the desired direction
- Physical layer security - integrated in commercial IoT networks, 5G systems, and 6G systems of the future
- Security for wireless networks
- Next-generation communication systems in smart cities
Intellectual Property & Development Status: Patent pending. Available for licensing and/or research collaboration.