计算机科学 ›› 2019, Vol. 46 ›› Issue (11A): 359-362.
侯培国, 王志轩, 严晨
HOU Pei-guo, WANG Zhi-xuan, YAN Chen
摘要： 无线射频识别(Radio Frequency Identification RFID)技术是物联网技术中的关键技术,为解决RFID系统中的多标签碰撞问题,文中提出了一种基于组合混沌映射(MDFSA)的帧时隙Aloha防碰撞算法。通过该算法,系统所得到的伪随机数更加均匀,标签对各个时隙的选择更加均匀。通过统计验证,仿真结果表明MDFSA算法提高了系统的稳定性和效率,减少了碰撞次数。与传统的DFSA算法相比,该算法将系统的效率最大提高了33％。随着标签数量的增加,所提算法的性能更加稳定,优势更加显著。其适用于大型RFID标签快速识别系统。
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