Network node movement control method based on channel state information

Abstract

The invention provides a network node movement control method based on channel state information. The method comprises the steps of firstly using an OFDM technology to divide a sub-channel of a CSI, computing an effective signal to noise ratio of the collected data, estimating maximum communication speeds between the network nodes, and removing abnormal values of the estimated communication speeds; then performing linear fitting on all the acquired communication speeds estimated within a step length, and judging a variation trend of the communication speeds between the network nodes within thestep length; and controlling the movement of the network node according to the variation trend, and finally acquiring the best position for the communication speed of the network node of a whole area. According to the method provided by the invention, the movement of the network node can be effectively controlled in the complex environment, and the communication performance can be effectively improved.

Description

technical field [0001] The invention relates to a network node mobility control method, which is used in systems such as wireless ad hoc networks (ad hoc networks), smart home and the like. Background technique [0002] As an important means of information transmission, wireless communication has penetrated into all walks of life and become one of the indispensable means of communication in modern human life. However, in actual communication, the communication rate between network nodes is often affected by various factors such as distance, environment, weather, etc., and the communication rate between network nodes at different locations varies greatly. In view of this problem, it is of great practical significance to design a reasonable network node movement control method and find the best position for communication between network nodes to increase the communication rate. [0003] The network node movement control is to use the received wifi signal information to move t...

AI Technical Summary

Problems solved by technology

The moving step size of the iMob algorithm introduced in the document "Gowda, Mahanth, N.Roy, and R.R.Choudhury."Infrastructure Mobility:A What-if Analysis."ACM Workshop on Hot Topics in Networks ACM,2014:19." Small, every time a network node receives a data packet, it must be processed once, which will not only increase the time of data processing, but also may obtain a local optimal position

The antenna array introduced in the document "Gowda, Mahanth, A.Dhekne, and R.R.Choudhury."The Case for Robotic Wireless Networks."International Conference on World Wide Web International World Wide Web Conferences Steering Committee, 2016:1317-1327." The method is more affected by environmental factors

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