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引用次数: 7
摘要
在本文中，我们重点讨论了如何大幅提高射频识别（RFID）多天线系统的吞吐量。我们研究了信道估计和接收器结构对基于帧空隙阿罗哈（FSA）的 RFID 系统理论吞吐量的影响。我们建议通过解决碰撞和每个时隙确认一个以上的标签来提高理论吞吐量。此外，为了从这种增加中获益，我们提出了一种碰撞恢复方法，即通过连续干扰消除和将星座投影到干扰的正交子空间。我们通过模拟分析了所建议方法的性能。
In this paper, we focus on a substantial throughput increase of a Radio Frequency Identification (RFID) multiantenna system. We investigate the influence of the channel estimation and the receiver structure on the theoretical throughput of Framed Slotted Aloha (FSA) based RFID systems. We propose an increase of the theoretical throughput by resolving collisions and acknowledging more than one tag per slot. Furthermore, in order to profit of such increase, we suggest a collision recovery method through successive interference cancellation and projection of the constellation into the orthogonal subspace of the interference. The performance of the proposed method is analysed by means of simulations.
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