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Multi-input multi-output (MIMO)-based troposphere scatter communication random channel modeling method

A technique of troposcatter and channel modeling, which is applied in the field of random channel modeling of troposcatter communication based on MIMO, which can solve the problems of no energy loss model and cumbersome calculation process

Inactive Publication Date: 2015-12-23
重庆恒芯天际科技有限公司
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Problems solved by technology

The difference between the two is that the climate parameters used in ITU-R617 are more accurate and easy to calculate; while NBS-101 provides a more complete calculation formula for the attenuation of the signal frequency domain, but the calculation process is very cumbersome
However, neither of the two loss calculation methods gives a clear energy loss model when the beam collides with the scatterer

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  • Multi-input multi-output (MIMO)-based troposphere scatter communication random channel modeling method
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  • Multi-input multi-output (MIMO)-based troposphere scatter communication random channel modeling method

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[0054] Hereinafter, embodiments of the present invention are described, examples of which are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0055] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0056] The modeling proc...

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Abstract

The invention provides a multi-input multi-output (MIMO)-based troposphere scatter communication random channel modeling method. Aiming at the situation of long-distance signal transmission under the technical background of MIMO, a troposphere scatter channel is selected as a research object. A troposphere is modeled into a differentiable curved surface according to the turbulent phenomenon of the troposphere; and scatterers are distributed on various points of the curved surface at random. According to the modeling method, firstly, an energy loss distribution model for scattered waves on the scatterer surfaces after electromagnetic waves enter the scatterers is established according to the turbulent incoherent scattering theory; energy losses are quantified according to the model; secondly, the invention provides a calculation method of a beam transmission distance under MIMO; and finally, a fading coefficient and a channel matrix of the MIMO-based troposphere scattering channel are deduced.

Description

technical field [0001] The invention relates to a modeling method of a troposcatter channel, in particular to a modeling method for a random channel of a troposcatter communication based on MIMO. Background technique [0002] Multiple-Input Multiple-Output (MIMO) technology refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and the receiving end, respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and the receiving end, thereby improving communication. quality. It can make full use of space resources, realize multiple transmissions and multiple receptions through multiple antennas, and can double the system channel capacity without increasing spectrum resources and antenna transmission power. It is regarded as the core technology of the next generation of mobile communications. [0003] The troposcatter channel is a complex variable parameter channel. In troposcatter co...

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Application Information

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IPC IPC(8): H04B17/391
Inventor 廖勇沈轩帆喻琼赵明陈玲胡异胡翼
Owner 重庆恒芯天际科技有限公司
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