Radio Frequency Identification (RFID) is a wireless identification technology which often operates in environments with multiple RFID tags. Already introduced multiple antenna receivers can recover from a collision of up to M tags as long as M is less than the number of receive antennas and the channel is known at the receiver. This paper proposes a Zero-Forcing (ZF) and a Minimum Mean Square Error (MMSE) receiver which allows the separation of up to M=2NR tags, where NR is the number of receiving antennas on the reader. The proposed algorithms are verified through simulations.
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机译：射频识别（RFID）是一种无线识别技术，通常在具有多个RFID标签的环境中运行。只要M小于接收天线的数量，并且已经知道接收器的信道，则已经引入的多个天线接收器可以从多达M个标签的冲突中恢复。本文提出了一种零强制（ZF）和最小均方误差（MMSE）接收器，该接收器最多可以分离M = 2N R 个标签，其中N R 是阅读器上接收天线的数量。仿真结果验证了所提算法的有效性。
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