Research on Dynamic Control of UAV Communication Access Congestion Based on State Feedback
To address the issue of communication access congestion in the channel reuse,it is necessary to control the real-time cumulative amount of data samples in the communication links of drones.Therefore,a dynamic control method based on state feed-back is studied for drone communication access congestion.A channel reuse model is established,and with the assistance of MAC con-nection protocol,communication data packets are defined to achieve the access behaviors of communication nodes in a drone cluster.Based on the state feedback model,the structure of a state observer is improved to solve the discrete feedback expression of communi-cation data.At the same time,the communication priority conditions are divided to determine the real-time scheduling relationship of drone queues and complete the control of drone communication behaviors.By defining conditions based on a dynamic threshold win-dow,the length of the communication link is determined,and in conjunction with the relevant communication data samples,the spe-cific value of the link delay is calculated to design the dynamic control method.Experimental results demonstrate that this design method can control the real-time cumulative amount of data samples in the communication link below 5.7 × 1013 Mb,it effectively solves the problem of communication access congestion in the channel reuse and meets practical application requirements.
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