Preprocessing for Physical-Layer Security in Wireless THz-Communication
It addresses secure communication in THz-MIMO systems, but the results are incremental and lack concrete performance numbers.
This paper investigates preprocessing for physical-layer security in wireless THz-MIMO communication, optimizing based on error performance or transmission rate, and evaluates secrecy rates and error ratios via simulations.
In this paper, the usage of preprocessing to achieve physical-layer security in a wireless THz-MIMO scenario is investigated. The goal is a reliable and secure communication. Optimization of the preprocessing is done either based on the error performance or the transmission rate. For both criteria, we present a variant that is based only on the legitimate receiver or also includes the eavesdropper. For each variant, linear and lattice-reduction-aided approaches are considered. Numerical simulations are used to assess the resulting secrecy rates and error ratios. A comparison between all variants is compiled and the possible trade-offs are discussed.