Ultra-low power wake-up circuit for short-range wireless communication

2008 ◽  
Author(s):  
T. Hakkinen ◽  
J. Vanhala
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Short Range ◽  
Ultra Low Power

A Low-Power Low-Cost 780MHz CMOS FSK Receiver for Short-Range Wireless Communication

2016 ◽  
Vol 25 (2) ◽  
pp. 220-226 ◽  
Author(s):  
Yadong Yin ◽  
Lihong Zhang ◽  
Yuanting Yang
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Short Range ◽  
Low Cost

scholarly journals treNch: Ultra-Low Power Wireless Communication Protocol for IoT and Energy Harvesting

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6156
Author(s):  
Fernando Moreno-Cruz ◽  
Víctor Toral-López ◽  
Antonio Escobar-Molero ◽  
Víctor U. Ruíz ◽  
Almudena Rivadeneyra ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wireless Communication ◽  
Low Power ◽  
Communication Protocol ◽  
Power Level ◽  
Power Input ◽  
Security Level ◽  
Current Standard ◽  
Ultra Low Power ◽  
Wireless Communication Protocol

Although the number of Internet of Things devices increases every year, efforts to decrease hardware energy demands and to improve efficiencies of the energy-harvesting stages have reached an ultra-low power level. However, no current standard of wireless communication protocol (WCP) can fully address those scenarios. Our focus in this paper is to introduce treNch, a novel WCP implementing the cross-layer principle to use the power input for adapting its operation in a dynamic manner that goes from pure best-effort to nearly real time. Together with the energy-management algorithm, it operates with asynchronous transmissions, synchronous and optional receptions, short frame sizes and a light architecture that gives control to the nodes. These features make treNch an optimal option for wireless sensor networks with ultra-low power demands and severe energy fluctuations. We demonstrate through a comparison with different modes of Bluetooth Low Energy (BLE) a decrease of the power consumption in 1 to 2 orders of magnitude for different scenarios at equal quality of service. Moreover, we propose some security optimizations, such as shorter over-the-air counters, to reduce the packet overhead without decreasing the security level. Finally, we discuss other features aside of the energy needs, such as latency, reliability or topology, brought again against BLE.

A fully-integrated CMOS UWB transceiver for ultra-low-power short-range application

2010 ◽  
Vol 39 (7) ◽  
pp. 783-790 ◽  
Author(s):  
Mengmeng Liu ◽  
Sheng Zhang ◽  
Shuo Wang ◽  
Runde Zhou
Keyword(s):  
Low Power ◽  
Short Range ◽  
Ultra Low Power ◽  
Fully Integrated

scholarly journals Low-power integrated transmitter design using frequency multiplication techniques

2020 ◽  
Author(s):  
Markus Stadelmayer ◽  
Tim Schumacher ◽  
Thomas Faseth ◽  
Harald Pretl
Keyword(s):  
Low Power ◽  
Radio Frequency ◽  
Short Range ◽  
Cmos Process ◽  
Power Demand ◽  
Frequency Multiplication ◽  
Ultra Low Power ◽  
Third Harmonic ◽  
Harmonic Extraction ◽  
Transmitter Design

Abstract This paper proposes an approach to employ frequency multiplication techniques like edge-combining and third harmonic extraction in ultra-low-power integrated transmitter design. The overall power demand of the transmitter is reduced by keeping operating frequency of its components low. For that reason, edge-combining and third harmonic extraction are integrated directly into a switched mode power amplifier. Hence, the radio frequency signal is generated just before it is fed to the antenna. This leads to a reduced power demand of the overall transmitter in comparison to conventional designs where the oscillator and other components are operated directly at the radio frequency. Within this paper we propose an amplifier that generates a 2.4 GHz carrier frequency from a ring oscillator running at a low 200 MHz resulting in a frequency multiplication factor of twelve. The exemplary design is targeted to be used in ultra-low-power short range applications. Hence, our simulations using extracted layout models show that the amplifier provides an output power of approximately -12 dBm at a supply voltage of 0.6 V while consuming 2.4 mW of power fully integrated in a 180 nm 1P6M CMOS process. This demonstrates that the proposed techniques are especially suitable for ultra-low-power transmitter in short range applications. That includes medical and body area network applications.

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