| 基于CDMA技术的新型防碰撞算法 |
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| 引用本文： | 彭琦,庞宇. 基于CDMA技术的新型防碰撞算法[J]. 数字通信, 2014, 0(2): 42-44 |
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| 作者姓名： | 彭琦 庞宇 |
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| 作者单位： | 重庆邮电大学, 重庆 400065;重庆邮电大学, 重庆 400065 |
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| 基金项目： | 国家自然科学基金（61102075）；重庆自然科学基金（CSTC2011BB2142）。 |
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| 摘 要： | 标签碰撞是射频识别（RFID）技术的常见问题,该问题影响了RFID系统通信过程中数据传输的完整性.在分析已有防碰撞方法的基础上,根据帧时隙分组ALOHA算法,结合码分多址技术,提出了新型的标签防碰撞算法.该算法能够有效减小标签之间的碰撞概率,缩短读写器操作时间,提高吞吐率,很适合应用于具有较大数量标签的RFID系统中.
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| 关 键 词： | 射频识别 防碰撞 ALOHA算法 码分多址 |
Novel CDMA-based anti-collision algorithm |
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| PENG Qi and PANG Yu. Novel CDMA-based anti-collision algorithm[J]. Digital Communication, 2014, 0(2): 42-44 |
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| Authors: | PENG Qi and PANG Yu |
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| Affiliation: | Chongqing University of Posts and Telecommunications,Chongqing,400065,P.R.China;Chongqing University of Posts and Telecommunications,Chongqing,400065,P.R.China |
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| Abstract: | Tag collision is the common problem in radio frequency identification technology, which affects the integrity of the data transmission in the RFID system. By the analysis of the existing anti-collision method, this paper relies on the slot frame group ALOHA technique and presents a new tag anti-collision algorithm combining with the code division multiple access technology. This algorithm can effectively reduce the collision probability between tags, shorten the time of reading and writing operations, and improve throughput, which is suitable for a number of tags in the RFID system. |
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| Keywords: | RFID anti-collision ALOHA CDMA |
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