功率自适应的RFID系统阅读器反碰撞算法

Adaptive Power Anti-collison Algorithm For RFID Reader Network

随着RFID技术的快速发展,阅读器的碰撞问题日益突出。本文提出一种新颖的阅读器反碰撞算法(APAA),APAA是基于功率自适应的新算法,该算法在发现信道忙的时候,通过按一定的参数自动调节功率,从而控制阅读器的通信范围,减少阅读器的碰撞。仿真结果与算法分析表明APAA算法与ALOHA、Colorwave和LLCR等算法比较,系统的效率方面有了明显的提高。

Along with the rapid development of RFID technology, there are more and more key technologies that have to be studied The reader anti-collision problem is one of them. In this thesis, we propose a new anti-collision algorithm （APAA） based on adap tive power, which reduces the collisions in RFID reader network by adjusting the range of reader. According to the result of the sim ulation and the algorithm analysis, we can know that the new anti-collision algorithm overcomes the shortcoming of coverage-base approach and improves the efficiency compared with scheduling-based approach.