A 7-µW 2.4-GHz wake-up receiver with -80 dBm sensitivity and high co-channel interferer tolerance

Milosiu, Heinrich; Oehler, F.; Eppel, Markus; Fruehsorger, Dieter; Thoenes, Thomas

doi:10.1109/wisnet.2015.7127409

Cited by 13 publications

(3 citation statements)

References 9 publications

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“…The WuRx in is one of the first publications of a sub‐100 µW WuRx and is cited by all other works in the table. The WuRx in uses FR4 to set up a transmission line voltage transformer to passively amplify and filter the incoming signal . employs a full super‐heterodyne architecture that is duty cycled to reduce data rate and power consumption.…”

Section: Measurement Resultsmentioning

confidence: 99%

1.5 µW wake‐up‐receiver for biotelemetry applications

Whitehall

Saavedra

2017

Micro & Optical Tech Letters

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16] Gielis JA. A generic geometric transformation that unifies a wide range of natural and abstratic shapes. Am J Bot. 2003;90 (3):333-338.[17] Wentworth SM. AbstractThis article presents a microwave wake-up receiver for biotelemetry applications. The circuit is designed using 130 nm CMOS technology and it consists of a passive amplification front end filter, envelope detector and baseband frequency amplifier with variable feedback filtering. The receiver is designed to operate at 7.6 GHz and measured results show that it has a sensitivity of 240 dBm while drawing just 3 lA from a 0.5 V supply. The presented work has the smallest known area and exhibits a competitive tradeoff between DC power, sensitivity, and bit rate. K E Y W O R D S biotelemetry, CMOS, CMOS RF design, low power RFIC design, wakeup receiver

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Section: Measurement Resultsmentioning

confidence: 99%

1.5 µW wake‐up‐receiver for biotelemetry applications

Whitehall

Saavedra

2017

Micro & Optical Tech Letters

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“…Sub-sampling-based WuRs can achieve better sensitivity than RFED-based WuRs, but also at the cost of increased power consumption. A 2.4-GHz WuR based on the sub-sampling architecture can be found in [22]. The WuR is severely duty cycled to achieve the small power consumption of 7 µW, it achieves a remarkable sensitivity of -80 dBm and a reaction time of 30 ms.…”

Section: Wake-up Receiver Architectures and State Of The Artmentioning

confidence: 99%

Area-Efficient Integrated Current-Reuse Feedback Amplifier for Wake-Up Receivers in Wireless Sensor Network Applications

Galante-Sempere

Ramos-Valido

Khemchandani

et al. 2022

Sensors

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Wireless sensor network (WSN) applications are under extensive research and development due to the need to interconnect devices with each other. To reduce latency while keeping very low power consumption, the implementation of a wake-up receiver (WuR) is of particular interest. In WuR implementations, meeting high performance metrics is a design challenge, and the obtention of high-sensitivity, high data rate, low-power-consumption WuRs is not a straightforward procedure. The focus of our proposals is centered on power consumption and area reduction to provide high integrability and maintain a low cost-per-node, while we simultaneously improve circuit sensitivity. Firstly, we present a two-stage design based on a feedback technique and improve the area use, power consumption and sensitivity of the circuit by adding a current-reuse approach. The first solution is composed of a feedback amplifier, two op-amps plus a low-pass filter. The circuit achieves a sensitivity of –63.2 dBm with a power consumption of 6.77 µA and an area as low as 398 × 266 µm2. With the current-reuse feedback amplifier, the power consumption is halved in the second circuit (resulting in 3.63 µA), and the resulting circuit area is as low as 262 × 262 µm2. Thanks to the nature of the circuit, the sensitivity is improved to –75 dBm. This latter proposal is particularly suitable in applications where a fully integrated WuR is desired, providing a reasonable sensitivity with a low power consumption and a very low die footprint, therefore facilitating integration with other components of the WSN node. A thorough discussion of the most relevant state-of-the-art solutions is presented, too, and the two developed solutions are compared to the most relevant contributions available in the literature.

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“…All these prototypes have power consumption below 0.27 µW with sensitivity ranging between -40 dBm to -56 dBm. For mid-range communication (e.g., smart city and metering), only [74], [82] (marked with a red circle) fullfill all these requirements at the same time. Power and sensitivity of these prototypes are 4.75 µW and 7.25 µW, and -83 dBm and -80 dBm, respectively.…”

Section: B Sensitivity Vs Power Consumptionmentioning

confidence: 99%

Ultra Low Power Wake-Up Radios: A Hardware and Networking Survey

Piyare

Murphy

Király

et al. 2017

IEEE Commun. Surv. Tutorials

227

160

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In wireless environments, transmission and 1 reception costs dominate system power consumption, motivating 2 research effort on new technologies capable of reducing the 3 footprint of the radio, paving the way for the Internet of 4 Things. The most important challenge is to reduce power 5 consumption when receivers are idle, the so called idle-listening 6 cost. One approach proposes switching off the main receiver, 7 then introduces new wake-up circuitry capable of detecting 8 an incoming transmission, optionally discriminating the packet 9 destination using addressing, then switching on the main radio 10 only when required. This wake-up receiver technology represents 11 the ultimate frontier in low power radio communication. In 12 this paper, we present a comprehensive literature review of 13 the research progress in wake-up radio (WuR) hardware and 14 relevant networking software. First, we present an overview of 15 the WuR system architecture, including challenges to hardware 16 design and a comparison of solutions presented throughout the 17 last decade. Next, we present various medium access control and 18 routing protocols as well as diverse ways to exploit WuRs, both 19 as an extension of pre-existing systems and as a new concept to 20 manage low-power networking.

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A 7-µW 2.4-GHz wake-up receiver with -80 dBm sensitivity and high co-channel interferer tolerance

Cited by 13 publications

References 9 publications

1.5 µW wake‐up‐receiver for biotelemetry applications

1.5 µW wake‐up‐receiver for biotelemetry applications

Area-Efficient Integrated Current-Reuse Feedback Amplifier for Wake-Up Receivers in Wireless Sensor Network Applications

Ultra Low Power Wake-Up Radios: A Hardware and Networking Survey

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