Experimental testbed evaluation of cell level indoor localization algorithm using Wi-Fi and LoRa protocols

Khan, Fasih Ullah; Mian, Adnan Noor; Mushtaq, Muhammad Tahir

doi:10.1016/j.adhoc.2021.102732

Cited by 8 publications

(3 citation statements)

References 29 publications

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“…Fig. 1 is Communication between LoRa End Node LoRa Gateway [7], MQTT Server, and an IoT-based LoRa [8][9][10] [11][12][13] [14]. The device in question is the End node or Easy LoRa Node, which then communicates with the LoRa Gateway using a specific LoRa Radio Frequency (RF) module [15][16] [17][18][19], e.g., 915 MHz or 920 MHz which the author has tested.…”

Section: Methods 21 Lora Architecture Concept and Methodsmentioning

confidence: 99%

LoRaWAN Technology in Irrigation Channels in Batu Indonesia

Adi

Kitagawa

Prasetya

et al. 2022

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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Currently, agricultural technology or Farming development is increasingly sophisticated by applying LoRaWAN-based IoT technology, ignoring quality agricultural products. LoRaWAN used in this research uses Long-Range Frequency 915 MHz and 920 MHz. The case study in this research is a case of river water quality that enters agricultural land or irrigation in Temas, Batu City, where the river water has been contaminated by household waste. The prototype installed on this farm uses an Arduino and Dragino LoRa 915 MHz microcontroller as transceivers and input and output devices consisting of ultrasonic sensors and water pH sensors, and outputs such as Solenoid valves mounted on tub one and tub 2. In contrast, tub 3 is a unique tub for distributing water to agricultural land with normal water pH quality. In this research, realtime monitoring, especially on the conditions of water turbidity, water pH, and water level.

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Section: Methods 21 Lora Architecture Concept and Methodsmentioning

confidence: 99%

LoRaWAN Technology in Irrigation Channels in Batu Indonesia

Adi

Kitagawa

Prasetya

et al. 2022

Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika

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“…Secondly, the authors carried out the experiments from 1700 h to 2100 h so that there is minimum mobility of students. Trilateration has been implemented in an experimental evaluation of cell-level indoor localization using Wi-Fi and LoRa in [21]. The authors divided a small testbed area into cells and predicted the cells using the trilateration technique.…”

Section: Related Workmentioning

confidence: 99%

Experimental Evaluation of Trilateration-Based Outdoor Localization with LoRaWAN

Magsi¹,

Khir²,

Nawi³

et al. 2023

Computers, Materials &Amp; Continua

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Long Range Wide Area Network (LoRaWAN) in the Internet of Things (IoT) domain has been the subject of interest for researchers. There is an increasing demand to localize these IoT devices using LoRaWAN due to the quickly growing number of IoT devices. LoRaWAN is well suited to support localization applications in IoTs due to its low power consumption and long range. Multiple approaches have been proposed to solve the localization problem using LoRaWAN. The Expected Signal Power (ESP) based trilateration algorithm has the significant potential for localization because ESP can identify the signal's energy below the noise floor with no additional hardware requirements and ease of implementation. This research article offers the technical evaluation of the trilateration technique, its efficiency, and its limitations for the localization using LoRa ESP in a large outdoor populated campus environment. Additionally, experimental evaluations are conducted to determine the effects of frequency hopping, outlier removal, and increasing the number of gateways on localization accuracy. Results obtained from the experiment show the importance of calculating the path loss exponent for every frequency to circumvent the high localization error because of the frequency hopping, thus improving the localization performance without the need of using only a single frequency.

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“…Such RSSI-based methods are vulnerable to fluctuating signals and AP deployment. Aiming to improve the accuracy, Ullah et al provided a reference research on the effect of various factors [ 25 ]. Bharadwaj and Koul proposed to mitigate the unreliable nature of the RSSI, which is easily plagued by surrounding noise [ 26 ].…”

Section: Related Workmentioning

confidence: 99%

Vision-Sensor-Assisted Probabilistic Localization Method for Indoor Environment

Shi

Yang

Shi

et al. 2022

Sensors

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Among the numerous indoor localization methods, Light-Detection-and-Ranging (LiDAR)-based probabilistic algorithms have been extensively applied to indoor localization due to their real-time performance and high accuracy. Nevertheless, these methods are challenged in symmetrical environments when tackling global localization and the robot kidnapping problem. In this paper, a novel hybrid method that combines visual and probabilistic localization results is proposed. Augmented Monte Carlo Localization (AMCL) is improved for position tracking continually. LiDAR-based measurements’ uncertainty is evaluated to incorporate discrete visual-based results; therefore, a better diversity of the particle can be maintained. The robot kidnapping problem can be detected and solved by preventing premature convergence of the particle filter. Extensive experiments were implemented to validate the robustness and accuracy performance. Meanwhile, the localization error was reduced from 30 mm to 9 mm during a 600 m tour.

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Experimental testbed evaluation of cell level indoor localization algorithm using Wi-Fi and LoRa protocols

Cited by 8 publications

References 29 publications

LoRaWAN Technology in Irrigation Channels in Batu Indonesia

LoRaWAN Technology in Irrigation Channels in Batu Indonesia

Experimental Evaluation of Trilateration-Based Outdoor Localization with LoRaWAN

Vision-Sensor-Assisted Probabilistic Localization Method for Indoor Environment

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