Method and system for judging an intervisibility path between communication nodes for a circular obstacle
A circular obstacle, communication node technology, applied in wireless communication, diversity/multi-antenna systems, space transmit diversity and other directions, can solve problems such as the occlusion effect of the line of sight path, reduce the computational complexity of the program, and overcome the large path loss. , the effect of reducing complexity
Active Publication Date: 2021-03-26
NAT UNIV OF DEFENSE TECH
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[0004] The purpose of the present invention is to provide a method and system for judging the line-of-sight path between communication nodes facing circular obstacles, to solve the problem of quickly judging the impact of circular obstacles on the line-of-sight path between communication nodes in millimeter wave wireless communication networks question
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Embodiment 1
[0045] An experimental environment disclosed in this embodiment is as follows: Considering that the millimeter-wave transceiver communication node spacing is 20m, circular obstacle nodes are randomly and uniformly scattered among the transceiver nodes, and the density variation range of randomly scattered circular obstacle nodes is 10 -6 ~10 -3 per square meter, number of simulations: 103 times. Experimental results show that the simulation time is shortened by at least about 47%.
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The invention belongs to the technical field of wireless communication, and discloses a method and a system for judging an intervisibility path between communication nodes for a circular obstacle. Themethod is used for judging whether a circular obstacle shields an intervisibility path between communication nodes or not, and comprises the following steps: step 1, acquiring coordinates of a communication node O, coordinates of a communication node X, a diameter of a circular obstacle B and coordinates of a circle center of the circular obstacle; 2, establishing a circular obstacle shielding area model, wherein the circular obstacle shielding area model comprises a rectangular area and two semicircular areas; 3, judging whether the circle center of the circular obstacle is in the circular obstacle shielding area model or not according to the proposed distance judgment criterion, and if the circle center of the circular obstacle is in the circular obstacle shielding area model, determining that a link OX between the communication node O and the communication node X is a non-intervisibility path; otherwise, taking the link OX as the intervisibility path. The method can be used for millimeter wave mobile communication network coverage planning and optimization.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method and system for judging the line-of-sight path between communication nodes facing circular obstacles. Background technique [0002] Stochastic geometry was born from the combination of integral geometry and point processes, focusing on the study of spatial random processes, such as spatial point processes. With the in-depth application of stochastic geometry theory in the fields of spatial statistics and stereometry, its theoretical development has become more and more perfect, and it can accurately model the random positions of nodes in the network and analyze the influence of interference in the network. At present, stochastic geometry has successfully provided a unified mathematical paradigm to model and analyze large-scale wireless communication networks. Analysis is especially important for network modeling such as 5G that requires large-scale deploymen...
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IPC IPC(8): H04W16/20H04B7/06
CPCH04W16/20H04B7/06Y02D30/70
Inventor 丁海洋林牧野陈华梁李海鹏辛可为荆锋
Owner NAT UNIV OF DEFENSE TECH