MIMO multiantenna communication system and performance evaluation method for communication system

A communication system and multi-antenna technology, which is applied in the field of MIMO multi-antenna communication system and communication system performance evaluation, can solve the problems that the influence of spherical wave fronts has not been studied in detail, the antenna array model cannot be directly applied, and the time-varying characteristics of geometric relationships are ignored.

Active Publication Date: 2019-02-01
苏州西林科电子技术有限公司
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Problems solved by technology

Wu considered the near-field effect and unsteady state in the array properties, but did not study the influence of the spherical wavefront on the non-line-of-sight component in detail, and ignored the time-var

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  • MIMO multiantenna communication system and performance evaluation method for communication system
  • MIMO multiantenna communication system and performance evaluation method for communication system
  • MIMO multiantenna communication system and performance evaluation method for communication system

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Embodiment Construction

[0054] The present invention will be further described below in combination with specific embodiments.

[0055] In consideration of replacing the traditional two-dimensional planar array assumption with a three-dimensional space assumption, the present invention proposes a 3D space domain MIMO antenna array model and evaluates its performance. By introducing performance evaluation parameters such as spatial autocorrelation correlation coefficient, MIMO time cross-correlation and frequency cross-correlation function, the performance advantages of antenna array are analyzed.

[0056] Step 1: For the vehicle-mounted mobile wireless environment, large-scale omnidirectional antennas are installed on the surface of the vehicle. Considering the shape change of the vehicle in 3D space, the traditional planar antenna array model cannot be directly applied to MIMO channel modeling. The antenna array Dimensional attributes will have a great impact on the overall channel performance. The...

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Abstract

The invention discloses an MIMO multiantenna communication system. The system comprises a transmitting end and a receiving end. The transmitting end and the receiving end are equipped with uniform spherical MIMO antenna arrays. The invention also provide a performance evaluation method for the MIMO multiantenna communication system. The provided system is described through scatterer Gaussian distribution. A spatial Gaussian distribution density function expression is determined. A joint probability density function of an angle of divergence (AOD) of a single-time bounce SBM component is expressed. An edge PDF of the angle of divergence (AOD) of a single-time bounce path SBM in the system is provided through utilization of integral of the joint PDF on a path length interval component. Fourier transform is carried out on pulse response h<pq>(t) to obtain a time varying transfer function. A frequency cross-correlation function is expressed. According to the system and the method, throughimporting of the spatial autocorrelation function, and temporal and frequency cross-correlation functions between two array elements pq, performance of the MIMO multiantenna communication system is evaluated, and the performance of terminal antenna arrays and a wireless communication system is optimized.

Description

technical field [0001] The invention belongs to the technical field of MIMO multi-antenna communication detection methods, relates to a MIMO multi-antenna communication system, and also relates to a performance evaluation method of the MIMO multi-antenna communication system. Background technique [0002] MIMO multi-antenna technology has received extensive attention from researchers in today's wireless communication systems. Recently, massively enhanced MIMO systems equipped with hundreds or even thousands of antennas have emerged to meet the needs of fifth-generation (fifth-generation, 5G) wireless communications. The increasing traffic demand of the network. Wood et al. have demonstrated that correlation-based Kronecker and Weichselberger channel models can be used to analyze the performance of compact MIMO systems. S.K.Yong proposed a series of geometric configuration models of compact MIMO antenna arrays based on 3D multipath channels, such as uniform linear array (uni...

Claims

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Application Information

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IPC IPC(8): H04B17/391H04B17/00H04B7/0413
CPCH04B7/0413H04B17/0087H04B17/3912
Inventor 席晓莉唐登洪张金生
Owner 苏州西林科电子技术有限公司
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