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| 一种新的RFID防碰撞算法设计 | |
| 引用本文： | 梁彪, 胡爱群, 秦中元. 一种新的RFID防碰撞算法设计[J]. 电子与信息学报, 2007, 29(9): 2158-2160. doi: 10.3724/SP.J.1146.2006.00922 |
| 作者姓名： | 梁彪 胡爱群 秦中元 |
| 作者单位： | 东南大学无线电工程系,南京,210096;东南大学无线电工程系,南京,210096;东南大学无线电工程系,南京,210096 |
| 基金项目： | 国家高技术研究发展计划(863计划) , 国家242信息安全计划 |
| 摘 要： | 该文提出了一种基于码分多址思想的时隙ALOHA算法(CS-ALOHA)，来解决射频识别(RFID)中的防碰撞问题。在建立该算法的数学模型的基础上，分析了其对系统吞吐量带来的好处，并推导出系统稳定的条件。理论与仿真实验表明，采用CS-ALOHA算法的系统稳定范围要大于时隙ALOHA系统，并且当选用的扩频码组阶数为N时，CS-ALOHA算法的最大吞吐量可达原时隙ALOHA的N倍。 |
| 关 键 词： | 射频识别 防碰撞 时隙ALOHA 码分多址 吞吐量 |
| 文章编号： | 1009-5896（2007）09-2158-03 |
| 收稿时间： | 2006-06-26 |
| 修稿时间： | 2006-06-26 |
A Novel Design for RFID Anti-collision Technique |
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| Liang Biao, Hu Ai-qun, Qin Zhong-yuan. A Novel Design for RFID Anti-collision Technique[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2158-2160. doi: 10.3724/SP.J.1146.2006.00922 | |
| Authors: | Liang Biao Hu Ai-qun Qin Zhong-yuan |
| Affiliation: | Department of Radio Engineering, Southeast University, Nanjing 210096, China |
| Abstract: | In this paper,a novel slotted-ALOHA algorithm based on Code division is presented for solving the RFID anti-collision problems.Its advantage to the system throughput is analyzed based on its mathematical model and the condition for system's stability is inferred as well.The theoretical and simulated results indicate that the stable scope of SC-ALOHA is broader than that of S-ALOHA and when N is the degree of spread spectrum codes used,the maximum throughput of SC-ALOHA might achieve N times that of S-ALOHA. |
| Keywords: | Radio Frequency Identification (RFID) Anti-collision Slotted ALOHA CDMA Throughput |
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