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Синтез лучевой траектории проникновения сигналов wlan в смежные помещения

Синтез лучевой траектории проникновения сигналов wlan в смежные помещения

Abstract

The formation of the service cell of the wireless local area network inside the building is the result of a joint action of several of the main mechanisms of radio waves multipath propagation: reflection, refraction, diffraction, diffusion. The modeling of the rays passing through walls and floors is carried out with the purpose of the analysis of WLAN signals propagation direction in premises adjacent to the place of the access point location. The surfaces of the building structural elements are approximated by planes. The refraction of rays is considered in the approximation of geometrical optics. The algorithm for constructing the trajectory of the double refraction beam in the case of the predefined positions of the access points and client network are designed. The procedure of constructing three-dimensional route is based on calculation of the ray intersection points coordinates with the first and second refraction surfaces, for which solved by a system of nonlinear algebraic equations in vector form. Examples of ray trajectories and the estimated dimensions of areas that contain the point of refraction, in the typical for the interior cases are given.

Формирование зоны обслуживания локальной беспроводной сети связи внутри здания является результатом совместного действия нескольких основных механизмов многолучевого распространения радиоволн: отражения, преломления, дифракции, диффузии. С целью анализа направления распространения сигналов WLAN в помещениях, смежных с местом расположения точки доступа, выполнено моделирование прохождения лучей сквозь стены и перекрытия здания. Поверхности элементов конструкций здания аппроксимированы плоскостями. Преломление лучей рассмотрено в приближении геометрической оптики. Разработан алгоритм построения траектории луча двукратного преломления в случае предопределённого положения точки доступа и клиента сети связи. Процедура построения трехмерной трассы основана на расчете координат точек пересечения луча с первой и второй преломляющими поверхностями, для чего решается система нелинейных алгебраических уравнений в векторной форме. Приведены примеры лучевых траекторий и оценены размеры областей, содержащих точки преломления, в типичных для внутренних помещений случаях.

Keywords

МЕТОД ГЕОМЕТРИЧЕСКОЙ ОПТИКИ, ПРЕЛОМЛЕНИЕ ЛУЧЕЙ, АЛГОРИТМ, ЛУЧЕВАЯ ТРАССИРОВКА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average