Method for establishing virtual broadband geometric channel for three-dimensional space
A technology of three-dimensional space and establishment method, which is applied in the field of establishment of virtual broadband geometric channel, and achieves the effect of important theory and application value
Inactive Publication Date: 2019-11-05
NANJING UNIV OF INFORMATION SCI & TECH
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[0003] In V2V communication, the antenna height of the user is relatively low, usually 1m to 2.5m, such antenna height limits the coverage of signal transmission
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[0036] The technical solutions of the present invention will be clearly and completely described below through specific embodiments.
[0037] The present invention provides a method for establishing a virtual wideband geometric channel in three-dimensional space, and its innovative point is that it specifically includes the following steps:
[0038] (1) Construct the initial broadband geometric channel model of the semi-ellipsoid in three-dimensional space, and define the model parameters of the initial broadband geometric channel model, and the mobile transmitter MT and the mobile receiver MR are respectively set with M T and M R A linear omnidirectional antenna, where the model parameters defining the initial wideband geometric channel model include: the distance between the two foci of the ellipse on the horizontal plane is expressed as f 0 , the distance between the mobile transmitter MT and the mobile receiver MR is D=2f 0 , the lengths of the real and imaginary axes of...
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The invention relates to a method for establishing a virtual broadband geometric channel for a three-dimensional space. The method specifically comprises the following steps: (1) constructing an initial broadband geometric channel model of a semi-ellipsoid in the three-dimensional space; (2) describing a virtual geometric channel by using a matrix; (3) under the initial tap and other taps, enabling a signal sent by the mobile sending end MT to reach a complex impulse response functional expression of the mobile receiving end MR through the direct path LoS and the non-direct path NLoS respectively; (4) describing the distribution of a horizontal angle and a vertical angle of a transmission path in the initial broadband geometric channel model in a three-dimensional space; (5) describing spatial cross-correlation characteristics of different transmission links in the initial broadband geometric channel model; and (6) completing the establishment of a virtual machine and a broadband channel. According to the method, the 5G mobile communication environment in the three-dimensional space can be accurately described, and important theoretical reference and design analysis basis are provided for channel measurement, modeling and estimation of a 5G wireless communication system.
Description
technical field [0001] The invention relates to the technical field of channel models, in particular to a method for establishing a virtual broadband geometric channel for three-dimensional space. Background technique [0002] In recent years, with the rapid development of wireless communication services and emerging broadband mobile Internet access technologies, the optimization of wireless communication systems is very important. When designing a wireless communication system with high performance and high spectral efficiency, it is necessary to fully understand the transmission performance of the wireless channel. In the fifth generation (The Fifth Generation, 5G) mobile communication technology, large-scale multiple input multiple output (Multiple Input Multiple Output, MIMO) and vehicle-to-vehicle (V2V) wireless communication technology fully embodies its Advantages. The performance of the massive MIMO system mainly depends on the wireless fading channel and the trans...
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Login to View More IPC IPC(8): H04B17/391
CPCH04B17/391H04B17/3912
Inventor 江浩周杰
Owner NANJING UNIV OF INFORMATION SCI & TECH