胡大辉,杜治国.基于二元指数后退的电子标签防碰撞算法[J].包装工程,2012,33(15):33-36. HU Da-hui,DU Zhi-guo.Anti-collision Algorithm of Electronic Tag Based on Binary Exponential Backoff[J].Packaging Engineering,2012,33(15):33-36. |
基于二元指数后退的电子标签防碰撞算法 |
Anti-collision Algorithm of Electronic Tag Based on Binary Exponential Backoff |
投稿时间:2012-06-08 修订日期:2012-08-10 |
DOI: |
中文关键词: RFID ALOHA 时隙 二元指数后退 |
英文关键词: RFID ALOHA time slot binary exponential backoff |
基金项目:国家自然科学基金资助项目(21007051); 西南大学青年基金资助项目(2010RCQ003) |
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中文摘要: |
为解决目前现有电子标签防碰撞算法在电子标签数量较大时,读取效率低且耗时较长的问题,提出了一种基于二元指数后退的时隙选择算法,当碰撞发生时,改进算法以二进制指数方式进行时隙的增加,并随机选择时隙发送数据,重复这个过程直到所有标签被正确读出。仿真试验表明,在电子标签数量急剧增加时,改进算法的读取效率较高,电子标签读取所需时隙基本不增加。 |
英文摘要: |
A time slot selection algorithm based on binary exponential backoff was put forward to solve the low reading efficiency and time consuming problems of existing electronic tag anti-collision algorithms under heavy reading load. When a collision occurs, the proposed algorithm increases the time slot to the binary exponential and randomly selects a time slot to send data, and repeat this process until all the RFID are read correctly. The simulation results showed that a sharp increase in the number of electronic tags, the higher the reading efficiency of the algorithm and with little increase of data access time. |
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