基于EPC-G2协议的分组访问控制Q算法
Q-Algorithm Utilizing Access Control by Group Based on EPC-G2 Protocol
DOI: 10.12677/CSA.2018.812209, PDF,   
作者: 姚晓峰*, 章 伟, 武利秀：江苏省物联网应用技术重点建设实验室(无锡太湖学院)，江苏 无锡；须文波：江南大学物联网工程学院，江苏 无锡
关键词: EPC-Gen2协议；分组；访问控制；俘获效应；Qgac算法；信号强度；EPC-Gen2 Protocol； Group； Access Control； Capture-Effect； Qgac-Algorithm； Signal Strength
摘要: 根据EPC-Gen2协议中的标准Q算法以及现有的改进Q算法，提出一种采用分组访问控制方法来提高RFID系统俘获效应的Qgac算法。为了提高系统的俘获效应，该算法在执行Q算法之前根据标签接收到的信号强度将所有标签分组，然后根据信号强度差异选定一对最有可能产生俘获效应的分组进行识别。在Matlab平台上的仿真结果表明，Qgac算法能有效地提高RFID系统的俘获效应，减少识别冲突的概率，从而进一步提高了RFID系统的识别性能。
Abstract: This paper presents a novel anti-collision algorithm called Qgac-Algorithm that drastically enhances the capture-effect in RFID system by utilizing access control by group, according to the standard and improved Q-Algorithm based on EPC-Gen2 Protocol. In order to enhance the capture-effect, Qgac-Algorithm divides all tags into multiple groups depending on received signal strength at the beginning of executing. Then, according to the difference of signal intensity, a pair of groups most likely to produce capture effect is selected for recognition. Numerical simulation results with Matlab platform represent that Qgac-Algorithm can effectively improve the capture-effect in RFID system, and greatly reduce collision probability, outperforming the other existing schemes significantly.
文章引用：姚晓峰, 须文波, 章伟, 武利秀. 基于EPC-G2协议的分组访问控制Q算法[J]. 计算机科学与应用, 2018, 8(12): 1878-1886. https://doi.org/10.12677/CSA.2018.812209

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