A Wavelet Resolution Processing Method Based on Angle Entropy

A processing method and wavelet decomposition technology, applied in space transmit diversity, diversity/multi-antenna systems, electrical components, etc., can solve problems such as large errors and multiple access interference, and achieve the effect of improving resolution

Active Publication Date: 2022-07-05
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

However, the non-orthogonal characteristics lead to serious multiple access interference in signal detection compared with the orthogonal signal system, so non-orthogonal multiple access technology is generally used in the power domain, through SI serial interference cancellation detection (SIC) Or Parallel Interference Cancellation (PIC) algorithm for signal detection. Both algorithms have their own advantages and disadvantages. At present, the SIC algorithm is favored because of its simplicity and easy implementation, and has become the preferred solution for non-orthogonal multiple access detection technology. When the number of users is large, due to the cumulative effect of detection errors, the error will become larger and larger, so it is not suitable for occasions with a large number of users

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  • A Wavelet Resolution Processing Method Based on Angle Entropy
  • A Wavelet Resolution Processing Method Based on Angle Entropy
  • A Wavelet Resolution Processing Method Based on Angle Entropy

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, 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 These are some embodiments of the present invention, but not all 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.

[0036] like figure 1 As shown, the present invention comprises the following steps:

[0037] S1: Receive multiple groups of signals sent by the base station;

[0038] S2: Determine whether the angular interval of the arrival angles of the first signal and the second signal in the multiple groups of signals is less than 4 degrees, ...

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Abstract

The invention discloses a wavelet discrimination processing method based on angle entropy, comprising: receiving multiple groups of signals sent by a base station; , if it is less than , use the angle entropy to divide the first signal and the second signal into a group; judge whether the power ratio of the grouped first signal and the second signal is 5:5 or 6:4, if No, the serial interference cancellation detection algorithm is used to distinguish the first signal and the second signal; the present invention groups according to the angle entropy, reduces the number of users in each group, and overcomes the traditional wavelet beamforming algorithm in the case of close angles , the shortcomings of indistinguishable, the existing wavelet beamforming algorithm has been improved to improve the resolution of the angle of arrival.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wavelet resolution processing method based on angle entropy. Background technique [0002] With the increase in the number of end users and the rapid development of mobile services such as the Internet of Things, the demand for various application fields of wireless networks has shown explosive growth, so wireless communication systems have put forward higher requirements for capacity and spectrum utilization. The traditional orthogonal multiple access method is difficult to provide enough access users, so the non-orthogonal multiple access (NOMA) technology is more and more adopted, such as 5G mobile communication system. However, the non-orthogonal characteristics lead to serious multiple access interference in signal detection compared with the orthogonal signal system. Therefore, the non-orthogonal multiple access technology in the power domain is generally used, and t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617
Inventor 李作洲李新宇庞二强
Owner DALIAN MARITIME UNIVERSITY
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