An Erase Code Based Collaborative Storage Method in RFID Systems

Ensuring the safe and reliable storage of important data under limited storage resources is an important challenge faced by RFID systems. Cooperative storage technology based on network coding can divide the transmitted data into blocks and store them redundantly on multiple RFID tags. This paper designs an erase-code-based cooperative storage scheme for important information in a large-scale RFID system. Moreover, the optimization of scheme parameters is studied according to different scenarios to ensure that key data can be successfully recovered under different RFID tag loss probabilities. Finally, the simulation platform is designed to verify the performance of the proposed scheme. Through testing, this study found that when the loss rate of RFID tags is 5%, 10%, 15%, and 20%, respectively, different data block sizes and data redundancies will have different probabilities of successfully restoring the original data.