Propagation Path Analysis with Propagation QUBO Model in Urban Area

At present, model for radio propagation path finding that can be applied to quantum annealing (QA) has been proposed (Propagation QUBO model) [1,2]. The model is that finds for a propagation path with the minimum propagation loss between transmitter (Tx) to receiver (Rx) at a given number of scattering times,
$N$
. Here, the maximum number of scatterings that should be considered in propagation path finding when applying the proposed model to a real environment is unknown. The probability of the existence of a propagation path with a low scattering frequency is expected to decrease as the distance between Tx and Rx increases. In this paper, “desired propagation path” is defined as the propagation path that radio wave can reach Rx with a set number of scattering, and spatial distribution characteristics of Rx where desired propagation path exists are evaluated in urban Macro-cell environment.