Assuming tags in the interrogator access range are uniformly distributed, a multi-stage interrogation scheme is utilized to further avoid tag collisions and minimize the system power consumption.

假设标签在读取的范围内均匀分布，利用分阶读取的技术将更进一步避免标签冲突并且使系统能量消耗减到最小。

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This paper presents a multi-group access control scheme that achieves multi-privileged access by combining the centralized and distributed key management scheme.

该文提出了一种多重组的访问控制方案，该方案使用集中式与分布协同式相结合的密钥更新算法实现了多权限的控制。

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The scheme encodes data according to the multi-carrier code division multiple access (MC-CDMA) approach and transmits the labeled data.

该方法对发端各节点的数据以多载波码分多址（MC- CDMA）方式编码，并进行贴标发射。

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