Interference and Coverage Analysis for Terahertz Band Communication in Nanonetworks

Abstract

Interference and coverage is a critical factor affecting the performance of nanonetworks in the terahertz (THz) band. In this paper, on the basis of THz channel model, the interferences from surrounding omnidirectional nanosensors (NSs) and beamforming Base Stations (BSs) are derived in closed forms by using stochastic geometry methods respectively. Furthermore, the corresponding Signal-to-Interference-plus-Noise-Ratio (SINR) and the coverage probabilities are investigated based on the proposed interference model. Simulation results, observed from the spectral windows at 1.0 THz, 4.5 THz and 9.1 THz, demonstrate that high density of BSs, beamforming antenna with small beam-width and low density of NSs are recommended to mitigate the interference and improve the coverage performance. Moreover, low frequency in THz band with low absorption coefficient is advocated to guarantee the correct reception with enough high received signal strength.