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。
Radio Frequency Identification(RFID)technology is a key technology in the Internet of Things.To solve the multi-tag collision problem in RFID system,this paper proposed a frame time slot Aloha anti-collision algorithm based on combined chaotic map(MDFSA).Through the algorithm,the pseudo-random number obtained by the system is more uniform,the selection of labels for each time slot is more uniform.Through statistical verification,the simulation results show that the MDFSA algorithm improves the stability and efficiency of the system and reduces the number of collisions.Compared with traditional DFSA algorithm,the proposed algorithm increases the efficiency of the maximum system by 33%.As the number of tags increases,the performance of the algorithm is more stable and the advantages are more significant.It is suitable for large RFID tag rapid identification systems.
作者
侯培国
王志轩
严晨
HOU Pei-guo;WANG Zhi-xuan;YAN Chen(School of Electrical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China)
出处
《计算机科学》
CSCD
北大核心
2019年第S11期359-362,共4页
Computer Science
基金
国家自然科学基金青年基金项目(6160051334,61702051)资助
