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An end-to-end broadband mobile MIMO propagation channel model and modeling method

A technology of propagation channel and modeling method, applied in the field of wireless communication, can solve the problem that the comprehensive impact of MIMO channel model is still very little, and achieve the effect of facilitating computer simulation and real-time hardware simulation

Active Publication Date: 2018-06-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] At present, there are many studies on the influence of single factors such as antenna position, coupling or polarization effects on wireless signal propagation, but there are very few studies on the comprehensive influence of antenna physical characteristics on MIMO channel models

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  • An end-to-end broadband mobile MIMO propagation channel model and modeling method
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  • An end-to-end broadband mobile MIMO propagation channel model and modeling method

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Embodiment Construction

[0061] The end-to-end broadband mobile MIMO propagation channel model of the present invention is expressed as the following form:

[0062]

[0063] in, is the steering vector of the transceiver antenna array; C r 、C t is the coupling coefficient matrix at the transceiver end; L is the number of scatterer clusters, and N is the number of branches in each cluster; f c is the carrier frequency, v r ,v t , is the moving speed and moving direction of the sending and receiving end; a l,n is the random initial phase and path gain of the lth cluster and the nth scattering branch, τ l is the time delay of each cluster.

[0064] The modeling method of the end-to-end broadband mobile MIMO propagation channel model of the present invention comprises the following steps:

[0065] Step 1: Establish a narrowband MIMO channel model in the wireless space without considering the antenna factor.

[0066] Let the number of receiving and transmitting antenna elements be N r and N...

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Abstract

The invention provides an end-to-end broadband mobile MIMO (multiple input multiple output) propagating channel model and a modeling method. The model and the modeling method are used for communication system optimization research and system performance evaluation. According to a broadband mobile MIMO propagating system, a transmitting antenna at the transmitting end and a receiving antenna at the receiving end both adopt mobile polarizing antenna arrays; the modeling method comprises the following steps of transmitting a signal transmitted by the mobile transmitting end to the mobile receiving end through a narrow band MIMO propagating channel to obtain an end-to-end narrow band mobile MIMO propagating channel model without considering physical characteristics of the antenna; obtaining polarization responses of the transmitting antenna and the receiving antenna, and de-polarization response of the MIMO polarizing propagating channel; obtaining a polarization factor of a polarization effect according to the polarization responses of the transmitting antenna and the receiving antenna, and the de-polarization response of the MIMO polarizing propagating channel; obtaining a coupling coefficient matrix of a transmitting antenna array and a receiving antenna array; and obtaining an end-to-end broadband mobile MIMO propagating channel matrix by combining the polarization factor and the coupling coefficient matrix of the transmitting-receiving antenna arrays.

Description

Technical field: [0001] The invention belongs to the field of wireless communication, in particular to an end-to-end broadband mobile MIMO propagation channel model and a modeling method that comprehensively consider physical characteristics such as antenna position, polarization, and coupling. Background technique: [0002] Multiple Input Multiple Output (MIMO) technology is a key technology in the current wireless mobile communication field. It can make full use of multiple antennas in space and effectively combat wireless channel fading without increasing bandwidth or transmission power, thereby Greatly improve the spectrum utilization and capacity of the system, and realize high-speed data transmission. [0003] Establishing an accurate and effective MIMO wireless channel model is the theoretical basis for realizing a mobile MIMO communication system, and the antenna is the part directly facing the propagation channel. Traditional MIMO systems usually use single-polariz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/391
Inventor 朱秋明薛翠薇胡续俊陈小敏刘星麟虞湘宾徐大专
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS