一种改进的帧时隙ALOHA防碰撞算法研究与实现

Research and Implementation on an Improved Frame-slotted ALOHA Anti-collision Algorithm

防碰撞算法是RFID系统中需要解决的关键技术。首先对帧时隙ALOHA防碰撞算法进行了分析,针对帧时隙ALOHA算法的局限性,提出了一种基于分组机制的动态帧时隙算法,并在.NET平台下对原算法和改进算法进行了仿真实验,仿真结果表明,改进后算法可以提高RFID系统吞吐率。

The anti-collision algorithm is the key technology of RFID system.Firstly,this paper studied frame-slotted ALOHA anti-collision algorithm,in order to solve the shortcomings of ALOHA algorithm,an improved anti-collision algorithm is proposed based on grouping mechanism,and it also carried out the simulation experiences using the C# language under the.NET platform.The simulation results indicate that the improved algorithms can increase RFID system throughput.