RFID中的不确定性标签防碰撞算法简介

Abstract of uncertainly anti-collision algorithm in RFID

针对RFID系统中的不确定防碰撞算法即ALOHA算法进行分析,首先介绍了ALOHA算法的工作原理,并对该类算法的吞吐率进行理论分析;然后推算得出当时隙数等于标签个数时吞吐率最高为36.8%;最后分析了几类改进的ALOHA算法的工作原理,对比了几类改进算法的优缺点以及在实际工程实践中的实用性。本文对ALOHA算法的后续研究工作以及工程实践中ALOHA算法的选取以及应用具有参考价值。

This paper mainly discussed the uncertainly anti-collision（ ALOHA） algorithm. This article firstly introduced the work and principles of process of ALOHA algorithm,then showed that when the slot number is equal to the tag number the ALOHA algorithm,the maximum throughout value is 36. 8%. Finally,it analyzed different classes of ALOHA algorithm and how it works,compared their advantages and disadvantages,and analyzed their practicality. This article has some reference values for further study of ALOHA algorithm and choosing the proper algorithm in actual project.