Improving output gain of wireless sensor network hardware design for underground applications

Hieu, Bui Van; Park, Youngsuk; Jeong, Taikyeong

doi:10.1007/s12205-013-0898-4

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…The equivalent model of the transmitter and receiver is presented in [2]. The transmitter and receiver circuit can be modeled as one resistor, one capacitor, and one inductor, as illustrated in Figure 3.…”

Section: MI Based Communicationmentioning

confidence: 99%

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

Sun

Shi

2015

International Journal of Distributed Sensor Networks

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In underground sensor networks, electronic magnetic waves undergo severe fading due to the challenging environment. Magnetic-induction (MI) communication is a promising alternative physical layer technique for underground sensor networks. In this paper, we solve the intercoil crosstalk in magnetic-induction multiple-input multiple-output (MI MIMO) communication and investigate the channel capacity for underground MI MIMO wireless communication. Firstly, considering mutual induction between each two coils, we analyze the capacity of magnetic-induction channel. Secondly, the channel model of magnetic-induction multiple-input single-output (MISO) is introduced and a novel coil deployment method is proposed to reduce the crosstalk in MI MISO communication. Finally, the capacity of MI MISO communication and MI MIMO communication is deduced by the proposed coil deployment method. Simulation shows that the channel capacity would increase significantly in high SNR regime for underground MI MIMO communication.

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Section: MI Based Communicationmentioning

confidence: 99%

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

Sun

Shi

2015

International Journal of Distributed Sensor Networks

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“…Using ultrasonic or optical communication, if sewage or sludge is mixed in the pipeline, the communication will be interrupted. When using underground radio, its stability is easily affected by soil properties, such as soil conductivity, moisture content and temperature [18][19][20]. Moreover, high-frequency electromagnetic waves attenuate very quickly when propagating underground, so only electromagnetic waves with extremely low frequencies can be served as the carrier, which results in a very low data transmission speed.…”

Section: Introductionmentioning

confidence: 99%

Design of Cone Penetration Test Data Relay Transmission by Magnetic Communication

Liu

Pei

2022

Sensors

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At present, most cone penetration test experiments use cables to transmit data. The cables not only make the exploration operation very complicated, but also hinder the realization of automatic exploration. An excessively long cable can also bring about additional attenuation and noise during the transmission of probe signal. In order to simplify the procedures of exploration operation and to improve the detection accuracy, a cableless cone penetration test system is proposed in this study. It improved the system by using magnetic communication and converts the electrical signal into a magnetic signal at the connection of two adjacent probe rods for relay transmission. Exploratory experiments were carried out to evaluate the feasibility and accuracy of the new system. The experimental results show that the experimental data collected by the new system is more accurate than that collected by traditional CPT equipment with cable. The new system simplifies exploration operations and enables real-time data transmission to detect abnormalities in time. This anomaly usually means that the probe is pressed against hard rock. It is more convenient and accurate to use the new system for exploration.

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Improving output gain of wireless sensor network hardware design for underground applications

Cited by 2 publications

References 7 publications

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

Design of Cone Penetration Test Data Relay Transmission by Magnetic Communication

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