Link layer bitstream data frame segmentation method based on association rules

Abstract

The invention discloses a link layer bitstream data frame segmentation method based on association rules, belonging to the technical field of wireless network communication. Aiming at the problems that existing link layer bitstream frame segmentation methods may not output a unique segmentation result, suffer from pseudo- synchronization sequence interference, and have low result credibility, the invention counts frequent sequences from link layer bitstream data, mines binary association rules, generates a directed graph of binary association rules, assigns coordinates to nodes, integrates all binary association rules to construct multiple association rules, and adjusts the minimum confidence through rationality judgment until a unique and credible frame segmentation result is output. This method realizes unique and accurate frame segmentation, effectively eliminates redundant sequences and pseudo-synchronization sequence interference, improves result credibility and algorithm efficiency, and provides support for subsequent link layer unknown protocol analysis.