Design of a backscatter-based Tag-to-Tag system
Design of a backscatter-based Tag-to-Tag system
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基于反向散射的标签到标签系统的设计
DOI：
10.1109/rfid.2017.7945579
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
M. Stanaćević
中科院分区：
文献类型：
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作者：
Yasha Karimi;A. Athalye;Samir R Das;P. Djurić;M. Stanaćević
物联网(IoT)的实用技术必须在一个公共框架下为所有对象提供连接，而无论其大小或价值如何。电力需求、无线设备成本和可扩展性已被证明是物联网普遍部署的关键瓶颈。解决这些问题的一种方法是使用通信范例，其中设备通过后向散射进行通信，并利用从外部射频源获取的功率。在反向散射标签到标签网络(BTTN)中，标签本身能够读取和解释来自其他相邻标签的反向散射通信。在标签到标签链路中，BTTN标签必须解调具有低调制指数的接收信号。为了改善链路范围，我们提出了一种低功耗的解调器设计，使接收标签能够量化幅度移位键控(ASK)调制信号，调制指数低至0.6%。该解调器在1.1 V电源电压下，数据速率为10 kbps时，功耗为1.21µW。
Practical technologies for the Internet of Things (IoT) must provide connectivity to all objects under a common framework irrespective of their size or value. Power requirement, cost of wireless devices and scalability have proved critical bottlenecks for the universal deployment of the IoT. One approach to address these issues is the use of a communication paradigm where the devices communicate via backscattering and exploit harvested power from an external RF source. In a Backscattering Tag-to-Tag Network (BTTN), the tags themselves are able to read and interpret the backscattered communications from other neighboring tags. In the tag-to-tag link, the BTTN tag has to demodulate a receiving signal with a low modulation index. In order to improve the link range, we propose a power-efficient demodulator design that enables the receiving tag to quantify the amplitude-shift keying (ASK) modulated signal with a modulation index as low as 0.6%. The demodulator consumes 1.21 µW at 1.1 V supply voltage at a data rate of 10 kbps.