A wireless ad hoc network anti-interference method

By performing frequency domain measurements and PELT change point detection in wireless ad hoc networks, a continuous frequency band set is generated and coordinated control is implemented, which solves the problem of unstable frequency band allocation in wireless ad hoc networks under complex frequency domain interference, and realizes more efficient spectrum resource utilization and continuous communication.

CN122179918APending Publication Date: 2026-06-09BEIJING SUP-INFO INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SUP-INFO INFORMATION TECH CO LTD
Filing Date
2026-04-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing wireless ad hoc network technologies struggle to achieve precision and stability in frequency band allocation when facing complex frequency domain interference, resulting in fragmented frequency bands, boundary jitter, poor transmit-receive coordination, and a lack of synchronization control mechanisms at the transmitting end.

Method used

Frequency domain measurements are performed at the receiving node to generate an interference characterization value sequence. A candidate boundary gating set is constructed and PELT change point detection is performed to generate a continuous frequency band set. This set is synchronized to the transmitting node, and segment-level state maintenance and reservation release are coordinated to achieve differentiated transmission control of frequency band states.

Benefits of technology

It improves the accuracy and stability of frequency band allocation, enhances transmit and receive coordination, reduces the probability of link interruption, and improves the efficiency of spectrum resource utilization and communication continuity.

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Abstract

This invention discloses an anti-interference method for wireless ad hoc networks, comprising the following steps: The receiving node performs frequency domain measurements on the current operating bandwidth to generate an interference characterization value sequence; a candidate boundary gating set is constructed, and a candidate segment boundary set is obtained based on the candidate boundary gating set; a joint segmentation cost is constructed, and PELT change point detection is performed using the joint segmentation cost and segmentation penalty intensity to generate a continuous frequency band set; a frequency band state set is generated based on the segmentation characteristics of each continuous frequency band in the continuous frequency band set; a mirror-locked frequency band object is generated, and the mirror-locked frequency band object is synchronized to the transmitting node to generate a frequency band control object; segment-level state maintenance and reservation release collaborative control are performed on the continuous frequency band set to generate an updated frequency band control object; anti-interference transmission control is performed to generate anti-interference transmission results. This invention improves the stability of anti-interference control in wireless ad hoc networks under complex frequency domain environments.
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