Investigation of Millimeter Wave Propagation Characteristics at E-band for Future Multi-Gigabit Wireless Communications

Abstract

Millimeter waves hold strong promise for future multi-Giga wireless communication due to the large available bandwidth. Due to the short wavelength of millimeter waves traveling a short distance, experiencing severe multipath, leading to large delay spread and path loss. i.e. large inter-symbol interference. However, the wideband propagation characteristics of these E-bands are not well studied. Therefore, in this paper, we aim to investigate the propagation characteristics of millimeter waves in the outdoor market at E-Band. In our paper, the Intelligent Ray Tracing model is used to predict wideband parameters that affect the propagation of millimeter waves by considering the geometry of environments. In this research, the biggest marketplace in Africa, Merkato is considered as a case study. We have found out that the propagation is mainly due to direct path as well as single and two-times reflections and diffractions from building walls. In particular, we have observed that 73 GHz produces the best outcome for path loss and received power when compared with other frequencies. A good agreement is observed between the simulation, ABG, and CI path loss model.