A collision thinking based algorithm for locating the weakest node in UAV communication anti jamming

DOI:	10.11809/bqzbgcxb2023.11.036
Keywords:	UAV communication; anti interference; weakest node; node positioning; DV hop algorithm
Abstract:	When positioning the weakest anti jamming node of UAV communication network, the node signal collision causes irregular changes in its instantaneous frequency characteristics, resulting in poor node positioning effect. Therefore, a positioning algorithm for the weakest anti jamming node of UAV communication based on collision thinking is designed. The analytical model of signal collision thinking of UAV communication network nodes is constructed, and the instantaneous frequency characteristics of anti jamming node signals in the process of signal collision are extracted. According to the instantaneous frequency characteristics and DV hop algorithm, the relationship model between the communication node and the communication distance is established, the average hop distance and the average hop number between the weakest anti jamming node and the anchor node are determined, and the specific location of the weakest anti jamming node of UAV communication is obtained to achieve node positioning. The experimental results show that the designed algorithm has a high coverage of communication nodes, good extraction effect of instantaneous frequency characteristics of node signals, and the maximum root mean square error of node location is only 0.45 m, which shows that the algorithm has a good effect of locating the weakest node in UAV communication anti interference.
Issue:	Vol. 44 No. 11 (2023)
Published:	2023-11-28
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