Efficient Anti-Collision Algorithm Utilizing the Capture Effect for ISO 18000-6C RFID Protocol

The capture effect commonly occurs when multiple tags simultaneously transmit their signals in ISO 18000-6C RFID systems, introducing challenges and opportunities for access control method design. In this letter, a novel anti-collision algorithm utilizing the capture effect for ISO 18000-6C protocol is presented based on the design of the capture-aware backlog estimation method and the derivation of the capture-aware optimum frame length equation. The maximum achievable throughput of the proposed algorithm is analytically provided, and numerical results show that the proposed algorithm significantly outperforms other existing schemes.