基于天线阵列和混合源分离的RFID系统碰撞分辨率

IF 4.4 3区 计算机科学 Q2 TELECOMMUNICATIONS
Mohamed Siala;Noura Sellami
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引用次数: 0

摘要

在这封信中,我们提出了一种有效的混合源分离(MSS)算法,用于在阅读器处配备天线阵列的射频识别(RFID)系统中解决碰撞问题。我们首先介绍了一种利用零常模(ZCM)准则通过梯度下降分离冲突标签的方法,而不使用导频符号。我们表明,在目标函数的设计中,单独考虑ZCM特性会导致在确定用于标签信息恢复的波束形成器时产生显着的模糊性。为了解决这一限制,我们提出了一种更复杂的方法,依赖于混合目标函数,除了ZCM标准之外,还结合了一个新的模糊性提高标准。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Collision Resolution in RFID Systems Using Antenna Arrays and Mix Source Separation
In this letter, we propose an efficient mix source separation (MSS) algorithm for collision resolution in radio frequency identification (RFID) systems equipped with an antenna array at the reader. We first introduce an approach that exploits the zero constant modulus (ZCM) criterion to separate colliding tags through gradient descent, without using pilot symbols. We show that the ZCM characteristic, considered alone, in the design of the objective function can lead to significant ambiguities in the determination of the beamformers used in the recovery of tag messages. To address this limitation, we propose a more sophisticated approach, relying on a hybrid objective function, incorporating a new ambiguity-raising criterion in addition to the ZCM criterion.
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来源期刊
IEEE Communications Letters
IEEE Communications Letters 工程技术-电信学
CiteScore
8.10
自引率
7.30%
发文量
590
审稿时长
2.8 months
期刊介绍: The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.
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