Wireless Environmental Sensor Networking With Analog Scatter Radio and Timer Principles

Kampianakis, Eleftherios; Kimionis, John; Tountas, Konstantinos; Konstantopoulos, Christos; Koutroulis, Eftichios; Bletsas, Aggelos

doi:10.1109/jsen.2014.2331704

Cited by 77 publications

(51 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While scatter-radio principles have been restricted to the communication ranges of up to a few meters [29]- [31], a novel scatter radio sensor network (WSN) for relative humidity measurements was presented in [32]. The WSN consisted of the low-power and low-cost analog designs of wireless transmitters (sensor nodes/tags) with scatter radio and extended communication ranges.…”

Section: A Scatter Radio Principlesmentioning

confidence: 99%

“…4 (arrows), the parallel capacitors (C p and C sm ) are periodically charged and discharged through R 2 and an electronic, single-pole single-throw (SPST) SW. The SW is open when timer output is in logic low, so there is no leakage current through the SW loop and has been placed in order to reduce consumption while attaining pulses with duty cycle of 50%; the latter is a fundamental difference compared with other C2F converters in the literature [32]. The timer output square wave pulse is offered with fundamental frequency given by…”

Section: A Sensor and C2f Convertermentioning

confidence: 99%

“…The simultaneous, collision-free operation of multiple, receiverless sensors is facilitated with frequency-division multiple access (FDMA) principles [21], [28], [32]; every tag is assigned a distinct frequency band (bandwidth), within which the switching rate (i.e., subcarrier frequency) of each tag's antenna load can vary. Fig.…”

Section: Multiple Accessmentioning

confidence: 99%

See 2 more Smart Citations

Soil Moisture Scatter Radio Networking With Low Power

Daskalakis

Assimonis

Kampianakis

et al. 2016

IEEE Trans. Microwave Theory Techn.

Self Cite

View full text Add to dashboard Cite

A low-cost (6 Euro per sensor), low-power (in the order of 200 µW per sensor), with high communication range (on the order of 250 m), scatter radio sensor network is presented, for soil moisture monitoring at multiple locations. The proposed network utilizes analog frequency modulation in a bistatic network architecture (i.e., the emitter and reader are not colocated), while the sensors operate simultaneously, using frequency-division multiple access. In contrast to prior art, this paper utilizes an ultralow-cost software-defined radio reader and offers custom microstrip capacitive sensing with simple calibration, as well as modulation pulses for each scatter radio sensor with 50% duty cycle; the latter is necessary for scalable network designs. The overall root mean squared error below 1% is observed, even for the range of 250 m. This is another small (but concrete) step for the adoption of scatter radio technology as a key enabling technology for scalable, large-scale, low-power, and cost environmental sensor networking.Index Terms-Scatter radio, sensor networks, soil moisture (SM).

show abstract

Section: A Scatter Radio Principlesmentioning

confidence: 99%

Section: A Sensor and C2f Convertermentioning

confidence: 99%

See 1 more Smart Citation

Soil Moisture Scatter Radio Networking With Low Power

Daskalakis

Assimonis

Kampianakis

et al. 2016

IEEE Trans. Microwave Theory Techn.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Utilizing backscatter techniques for achieving communication, requires a RF switch alternating the loads which terminate the sensor's antenna; illumination of the sensor is also needed from a dedicated ( [2][3][4][5]) or a lready-modulated, i.e., ambient (FM [6,7], DTV [8]) RF source. Replacing active components such as power amplifiers, mixers, oscillators and filters with a simple RF switch, offers tremendous reduction in power consumption.…”

Section: Introductionmentioning

confidence: 99%

Practical Energy Harvesting for Batteryless Ambient Backscatter Sensors

et al. 2018

Self Cite

View full text Add to dashboard Cite

Abstract:This work studies the performance of two methods for providing power to an ultra-low power, ambient backscatter tag, omitting the need for any battery. RF energy harvesting from a dedicated source and energy harvesting from ambient light using a single photodiode are compared. Extensive measurement results from tests conducted under real world conditions are offered for both harvesting methods. It is concluded that for a total cost of under 7 Euros the need for a battery can be eliminated, by using a single photodiode element along with a suitable boost converter. The ultra-low power character of the utilized tag enables the use of multiple harvesting methods and paves the way towards truly battery-less wireless sensor systems.

show abstract

“…Moreover, work in [16] offered closed formed expressions for the outage probability of monostatic scatter sensor networks. An analog bistatic scatter radio WSN was presented in [17].…”

Section: Introductionmentioning

confidence: 99%

Bistatic architecture provides extended coverage and system reliability in scatter sensor networks

Tountas

Alevizos

Tzedaki

et al. 2015

2015 International EURASIP Workshop on RFID Technology (EURFID)

Self Cite

View full text Add to dashboard Cite

Scatter radio is a promising enabling technology for ultra-low power consumption and low monetary cost, largescale wireless sensor networks. The two most prominent scatter radio architectures, namely the monostatic and the bistatic, are compared. Comparison metrics include bit error probability under maximum-likelihood detection for the single-user case and outage probability for the multi-user case (including tight bounds). This work concretely shows that the bistatic architecture improves coverage and system reliability. Utilizing this fact, a bistatic, digital scatter radio sensor network, perhaps the first of its kind, using frequency-shift keying (FSK) modulation and access, is implemented and demonstrated.

show abstract

Wireless Environmental Sensor Networking With Analog Scatter Radio and Timer Principles

Cited by 77 publications

References 33 publications

Soil Moisture Scatter Radio Networking With Low Power

Soil Moisture Scatter Radio Networking With Low Power

Practical Energy Harvesting for Batteryless Ambient Backscatter Sensors

Bistatic architecture provides extended coverage and system reliability in scatter sensor networks

Contact Info

Product

Resources

About