Mechanism of Wireless Propagation

This chapter presents all the various experimental results available in the literature on the propagation path loss for cellular wireless propagation systems. It provides an accurate numerical evaluation of the fields in a cellular wireless environment using a macro model based on an accurate computer program which uses the Green's function based on the Sommerfeld and Schelkunoff formulations. The numerically accurate evaluation of the fields containing the Sommerfeld integrals is used for the analysis of the propagation data measured by Okumura et al. The chapter illustrates the nature of the radio wave propagation mechanism related to the physics over a two layer medium. To illustrate the effect of the tilt (mechanical or electronic) of the transmitting antenna on the propagation path loss in the cellular networks, simulations were performed using the macro model analyzed using analysis of wire antennas and scatterers (AWAS). The chapter provides the mathematical details for the derivation of the macro model.

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