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A Method of Establishing Base Station Signal Field Strength Map Based on Compressive Sensing

A compressed sensing and signal field technology, applied in 2D image generation, image data processing, transmission monitoring, etc., can solve the problem of incomplete application of wireless signal field strength maps, etc., to reduce the actual measurement workload, high accuracy, improve The effect of efficiency and accuracy

Active Publication Date: 2016-05-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The above methods are not fully applicable to the construction of wireless signal field strength maps

Method used

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  • A Method of Establishing Base Station Signal Field Strength Map Based on Compressive Sensing
  • A Method of Establishing Base Station Signal Field Strength Map Based on Compressive Sensing
  • A Method of Establishing Base Station Signal Field Strength Map Based on Compressive Sensing

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Embodiment 1

[0041] This embodiment introduces a method for establishing a base station signal field strength map based on compressed sensing, as shown in the attached figure 1 shown, including the following steps:

[0042] (1) First, collect some existing base station signal high-resolution field strength maps, and use the KSVD algorithm to decompose the sparse redundant dictionary to obtain a redundant dictionary library corresponding to the wireless signal field strength map.

[0043] (2), with figure 2 Take the field strength map example in , as an example, and set the resolution of the final restored field strength map to 50×50. right figure 2 Perform ordinary Kriging algorithm interpolation to obtain a preliminary interpolation map of 50×50, such as image 3 As shown, its image matrix is ​​expressed as C, and the corresponding column-wise vectorization form of the map matrix is ​​expressed as

[0044] (3), assuming that the field strength values ​​of all 625 measured points i...

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Abstract

The invention relates to the technical field of compressed sensing and the technical field of wireless communication, such as mobile communication and wireless communication, in particular to a method for constructing a base station signal field intensity map based on compressed sensing in mobile communication networks such as Wi-Fi (wireless fidelity) wireless local area networks and cellular communication. The method is based on the sparse decomposition and compressed sensing technology of a redundant dictionary, and through constructing a special observing matrix, a high-resolution field intensity distribution map is constructed on the basis of a low-resolution single-frame actual measuring field intensity map. Through the method provided by the invention, the wireless signal field intensity map can be effectively subjected to recovery reconstruction, the work load of measuring the signal field intensity values in the off-line stage in the application such as wireless network planning and wireless field intensity positioning can be actually reduced, and the construction efficiency and the accuracy of the signal intensity map can be improved.

Description

technical field [0001] The present invention relates to the field of compressed sensing technology and wireless communication technology, such as mobile communication and wireless communication, and in particular to a method for establishing a base station signal field strength map based on compressed sensing in mobile communication networks such as Wi-Fi wireless local area network and cellular communication. Background technique [0002] In the mobile communication network, the geographical distribution of the field strength of the base station signal is the field strength map, which is very valuable data in wireless communication operations. Applications. However, the wireless signal field strength map is difficult to obtain in a simple manner. This is mainly caused by the complex propagation environment of wireless signals. In the mobile communication network, the propagation path between the base station and the receiver is very complicated, ranging from simple line-o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00H04B17/318
Inventor 卓永宁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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