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Relative power factor K(α,β) versus α and β directions of transmitting and receiving beams under (a) LOS and (b) NLOS conditions for D = 100 m.
Source publication
In this paper, we analyze the spectral efficiency for millimeter wave downlink with beam misalignment in urban macro scenario. For this purpose, we use a new approach based on the modified Shannon formula, which considers the propagation environment and antenna system coefficients. These factors are determined based on a multi-ellipsoidal propagati...
Contexts in source publication
Context 1
... α 270° and -90° β 90° with step Δα = Δβ = 1°; • to obtain average statistical results in the MPM, L = 10 paths are generated at the TX for each time-cluster (semi-ellipsoid); on the other hand, M = 360 MonteCarlo simulations were run for each analyzed scenario; in this case, the average resolution of generating the angles of departure is about 0.1°. In Figure 3, K(α, β) versus α and β directions of the transmitting and receiving antenna beams is illustrated. This graphs clearly show that when the beams are directed at each other, a dominant received power is obtained. ...
Context 2
... the analyzed LOS and NLOS conditions. Figure 3 (a) shows that the maximum power is obtained for beam alignment, which is obvious. The direction of the receiving antenna has a decisive influence on the power level. ...
Context 3
... NLOS conditions, the MP propagation phenomenon makes it necessary to search for optimal α and β directions of the transmitting and receiving antenna beams, which will ensure the maximization of the received signal level. Figure 3 (b) shows that under NLOS conditions, the received signal obtains the statistically highest power level for the TX beam direction equal to α = 120°. However, in this case, the beam direction of the receiving antenna to achieve this power level should be equal β = 28°. ...
