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A kind of mimo-ofdm system quantization noise elimination method, medium and equipment

A technology of MIMO-OFDM and quantization noise, which is applied in the field of quantization noise elimination in MIMO-OFDM systems, to achieve the effects of improving accuracy, strong anti-noise ability, and fully utilizing bandwidth

Active Publication Date: 2022-08-09
XI AN JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a MIMO-OFDM system quantization noise elimination method, medium and equipment to solve the data detection problem of the MIMO-OFDM system using the ADC. Quantization noise distribution fitting to complete the purpose of data detection

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  • A kind of mimo-ofdm system quantization noise elimination method, medium and equipment
  • A kind of mimo-ofdm system quantization noise elimination method, medium and equipment
  • A kind of mimo-ofdm system quantization noise elimination method, medium and equipment

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Embodiment Construction

[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] It is to be understood that, when used in this specification and the appended claims, the terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or The presence or addition of a number of other features, integers, steps, operations, elements, components, and / or sets thereof.

[0063] It should also be understood that the termi...

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Abstract

The present invention disclosed a MIMO‑OFDM system quantitative noise elimination method, medium, and equipment. Use the quantitative noise E generated by the mixed Gaussian model fitting metering device.Dental distribution function; combine the combination of Gaussian white noise and quantitative noise E in the channel as the sum of the error Q to build a total system error model; use the expectation method to maximize the parameters in the system error model; according to the system error model according to the system error modelParameters, combined with the generally similar message transmission method to restore the sending signal from the receiving signal to achieve noise elimination.The invention conducts a non -Gaussian error distribution of the error generated by the ADC, and proposes the EM‑GAMP data detection method based on this error model, which improves the accuracy of data detection.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method, medium and device for eliminating quantization noise in a MIMO-OFDM system. Background technique [0002] The MIMO-OFDM system is a communication system that combines the MIMO technology with the OFDM technology, and divides more orthogonal sub-carriers on a spectrum with a larger bandwidth. OFDM can improve the anti-interference ability of MIMO in frequency selective channels and simplify the complexity of the receiver. MIMO can use the spatial freedom to improve the transmission rate of OFDM. The combination of the two technologies can form certain complementary advantages in wireless signal transmission. The improvement of channel capacity brought by MIMO-OFDM technology makes it have great application potential in high-speed data transmission. It is an inevitable trend to use MIMO-OFDM technology on a large scale in wireless communication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/08H04B17/391
CPCH04B7/0413H04B17/391H04B7/0854Y02D30/70
Inventor 李锋田培婷赵天妤
Owner XI AN JIAOTONG UNIV