Method and system based on visual cognition in radio communication

Abstract

The invention provides a method based on visual cognition in radio communication, comprising the steps of obtaining visual information, detecting image features, identifying targets, analyzing radio scenes, selecting radio communication modes and managing resources, etc. The invention can observe the radio communication environment by way of seeing, actively interact with the radio environment, fully recognize the whole scene of the radio environment, learn and reason the radio communication environment and make more effective and accurate decisions. In addition, the invention can be widely applied to the existing radio communication systems, flexibly provide more diversified application services, provide solutions with pertinence for meeting the all-round requirements of the users and realize humanization and intellectualization of radio communications.

Description

technical field [0001] The invention relates to the field of cognitive wireless communication, and for the first time proposes a method based on visual cognitive wireless communication environment. Background technique [0002] With the rapid growth of demand for wireless communication services, available wireless resources are becoming increasingly scarce, and the power consumption requirements for access devices are also becoming more stringent. Cognitive Radio technology (CR, Cognitive Radio) should be used in this context. Born, JosefMitola proposed this concept in 1999, and the cognitive radio it defines is a radio that uses pattern-based reasoning to achieve specific wireless-related requirements, including the main links of environmental perception, adaptation to the environment, reconfiguration, and autonomous operation. That is, wireless devices with cognitive capabilities can perform adaptive sensing and detection of the surrounding wireless environment, obtain wir...

AI Technical Summary

Problems solved by technology

The primary task of existing cognitive technologies is generally to determine whether a specific frequency band is occupied, which affects system performance and resource consumption on the spectrum occupation time, who is occupied, how to occupy it, and the probability of occupation (that is, how many users around want to occupy it). Lack of cognition of key soft information, or it is difficult to obtain such soft information through spectrum "monitoring"

Therefore, the binary decision based on the presence or absence of spectrum only solves the feasibility problem of spectrum access, and does not give the system parameters and cost of using the spectrum

[0013] (2) Cognitive parameters are single, lacking panoramic multi-dimensional information

The parameters recognized by "listening" are limited to RF characteristics, and it is impossible to grasp the panoramic multi-dimensional information parameters of the wireless communication environment such as the distribution of base stations around the user, the density of buildings, the density of users, and the trend of user movement. Parameters can greatly enhance the amount of information related to the understanding of the wireless environment. Therefore, the simplification of cognitive parameters can easily lead to decision-making errors in communication mode selection and resource allocation.

[0014] (3) Judgment accuracy is low

When the cognitive user adopts the "monitoring" method, since the location of the primary user cannot be known, it can only detect the weak signal of the primary user, which is easily interfered by the wireless environment, and when the detection path is blocked, the primary user cannot even be detected , this way of blindly recognizing the wireless environment will lead to extremely low accuracy when judging the communication information of the primary user

[0015] (4) The way of cognition and decision-making is passive in nature

Negatively responding to the wireless environment will fail to guarantee communication quality and user satisfaction

Images