| 新型的RFID动态帧时隙ALOHA防碰撞算法 |
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| 引用本文： | 孙文胜,金陈敏.新型的RFID动态帧时隙ALOHA防碰撞算法[J].信息与控制,2012,41(2):233-237. |
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| 作者姓名： | 孙文胜 金陈敏 |
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| 作者单位： | 杭州电子科技大学通信工程学院,浙江杭州,310018 |
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| 摘 要： | 基于动态帧时隙ALOHA算法,提出一种新型的标签数目估计算法.该算法利用当前帧的时隙信息,结合贝叶斯算法获得标签数目的概率函数分布,从而更加准确地估计出下一帧的标签数目.仿真结果表明,该算法对标签数目的估计误差维持在1.4％,信道吞吐率逼近理论值36.8％,证明了其有效性.
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| 关 键 词： | 射频识别(RFID) 防碰撞 动态帧时隙ALOHA 标签数目估计 哈希函数 |
A Novel Dynamic Frame Slotted ALOHA Algorithm for Anti-Collision in RFID Systems |
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| SUN Wensheng
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JIN Chenmin.A Novel Dynamic Frame Slotted ALOHA Algorithm for Anti-Collision in RFID Systems[J].Information and Control,2012,41(2):233-237. |
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| Authors: | SUN Wensheng JIN Chenmin |
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| Affiliation: | (School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China) |
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| Abstract: | Based on dynamic frame slotted ALOHA algorithm,a novel algorithm is presented to estimate the number of tags.Utilizing the slot information of the current frame and combining the Bayesian algorithm to get the probability distribution of the number of tags,the algorithm estimates the next frame’s tags quantity more accurately.The simulation results show that the estimation errors of the number of tags remain stable around 1.4% and the channel throughput rate is close to the theoretical value 36.8% by using the algorithm,which proves the effectiveness of the algorithm. |
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| Keywords: | radio frequency identification(RFID) anti-collision dynamic frame slotted ALOHA quantity estimation of tag Hash function |
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