Signal-to-Noise Ratio Measurements for IoT Communications with Quantum Tunneling Reflectors

被引：0

作者：

Amato, Francesco ^{[1
]}

Durgin, Gregory D. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

2016 IEEE 3RD WORLD FORUM ON INTERNET OF THINGS (WF-IOT) | 2016年

关键词：

SNR; Signal-to-noise ratio; Backscatter; BLE; Wireless; Internet of Things; RFID; Wireless Sensor Network; Tunnel Diode; Quantum tunneling; Backscatter modulation; low power; long range; QTR; LOCKING;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this work, we show how a quantum tunneling reflector (QTR) achieves high signal-to-noise ratio (SNR) when properly locked to a 5.8 GHz external signal. The energy cost per bit of the RF device is only 2.9 pJ/bit, compared with over 10 nJ/bit for conventional Bluetooth Low Energy (BLE) transmitters. As a result, sensors communicating through backscatter modulation can increase their communication range at low energy cost per bit when equipped with a quantum tunneling reflector. Although the tunnel diode is highly non-linear, the measured SNR is approximately linear for increasing impinging powers; moreover, by amplifying signals below -55 dBm, the tunneling reflector achieves high sensitivities and extends by a factor of four the range of a backscatter system with respect to the signal-to-noise ratio.

引用

页码：383 / 388

页数：6

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