Tag collision is one of the critical problems in radiofrequency identification (RFID) technology which can be widely used to identify objects using tag attachment automatically. Through the transmission and reflection of wireless radiofrequency signals, noncontact identification is realized. However, when multiple tags respond to the reader simultaneously, a collision occurs, significantly degrading the identification performance of RFID systems. To tackle the tag collisions, we propose a fast hybrid strategy-based RFID anticollision (FHS-RAC) protocol. Based on the conventional query tree algorithm, the proposed FHS-RAC makes full use of collision bits and the total response bits to achieve the faster tag identification. Extensive simulations and experiments verify the feasibility and effectiveness of our proposed scheme.

中文翻译：

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基于快速混合策略的RFID标签识别协议

标签碰撞是射频识别（RFID）技术中的关键问题之一，射频识别技术可以广泛地用于使用标签附件自动识别对象。通过无线射频信号的传输和反射，实现了非接触式识别。但是，当多个标签同时响应读取器时，会发生冲突，从而大大降低RFID系统的识别性能。为了解决标签冲突，我们提出了一种基于快速混合策略的RFID防冲突（FHS-RAC）协议。基于传统的查询树算法，提出的FHS-RAC充分利用了冲突位和总响应位，实现了更快的标签识别。大量的仿真和实验验证了我们提出的方案的可行性和有效性。