Underdetermined RFID Tag Anti-collision Technology Based on Bounded Component Analysis
This paper focuses on the tag collision problem faced by Radio Frequency Identification(RFID),that is,co-channel in-terference elimination.From the perspective of communication transmission layer signal processing,the multi-label anti-collision problem is modeled as a Blind Source Separation(BSS)problem.In order to reduce the cost of reader antenna,this paper uses the boundedness of the tag communication signal to propose an underdetermined anti-collision technology for RFID tags based on Bounded Component Analysis(BCA).This algorithm combines an underdetermined tag signal collision model with a BCA mechanism.Simulation experiment verification and analysis results show that the proposed BCA algorithm can better solve the underdetermined collision problem,improve the effect of eliminating co-channel interference of tag signals,improve system Bit Error Rate(BER)performance,and reduce complex-ity of the underdetermined model system.
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