Interference and SINR in Dense Terahertz Networks

Over the last decade short-range communications in the terahertz band have been extensively studied as a technology-enabler for dense and ultra-dense wireless networks. Recent advances in miniaturized terahertz transceivers design promise wireless connectivity and simultaneous interaction between thousands of devices. However, the feasibility of network-wide communications is still an open issue due to specific features of the terahertz band and inherent properties of dense deployments. We address this issue developing an analytical model for interference and SINR assessment in dense terahertz networks obtaining the first two moments and density functions for both metrics. Our results demonstrate that the presence of molecular noise does not qualitatively affect the behavior of SINR, while its quantitative effect is of secondary importance compared to interference. The presented approach provides the so-far missing building block for performance analysis of prospective dense terahertz networks.