Status Estimation and In-Process Connection of Kanbans Using BLE Beacons and LPWA Network to Implement Intra-Traceability for the Kanban System [PDF]
Sensors, 2021 IoT-based measurement systems for manufacturing have been widely implemented. As components that can be implemented at low cost, BLE beacons have been used in several systems developed in previous research.
Takanobu Ĺtsuka +2 more
exaly +4 more sources
An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA [PDF]
SensorsLow-power wide-area (LPWA) is a communication technology for the IoT that allows low power consumption and long-range communication. Additionally, packet-level index modulation (PLIM) can transmit additional information using multiple frequency channels ...
Takeo Fujii +2 more
exaly +4 more sources
A Multichannel Conflict-Free Mac Protocol for Enhancing RPMA Scalability [PDF]
Sensors, 2023 The internet of things (IoT) revolutionized human life, whereby a large number of interrelated devices are connected to exchange data in order to accomplish many tasks, leading to the rapid growth of connected devices, reaching the tens of billions.
Enas Ali Alsaeedi, Fatma Bouabdallah
doaj +2 more sources
An Efficient Turbo Decoding and Frequency Domain Turbo Equalization for LTE Based Narrowband Internet of Things (NB-IoT) Systems [PDF]
Sensors, 2021 This paper addresses the main crucial aspects of physical (PHY) layer channel coding in uplink NB-IoT systems. In uplink NB-IoT systems, various channel coding algorithms are deployed due to the nature of the adopted Long-Term Evolution (LTE) channel ...
Mohammed Jajere Adamu +5 more
doaj +2 more sources
Study on Improvement of Radio Propagation Characteristics of Cast Iron Boxes for Water Smart Meters [PDF]
Sensors, 2023 Water utilities in Japan face a number of challenges, including declining water demand due to a shrinking population, shrinking workforce, and aging water supply facilities. Widespread use of smart water meters is crucial for solving these problems.
Eiichi Tateishi +5 more
doaj +2 more sources
A survey on LPWA technology: LoRa and NB-IoT
ICT Express, 2017 By 2020, more than twenty five billion devices would be connected through wireless communications. In accordance with the rapid growth of the internet of things (IoT) market, low power wide area (LPWA) technologies have become popular.
Seung-Hoon Hwang +2 more
exaly +3 more sources
Optimized Gateway Placement for Interference Cancellation in Transmit-Only LPWA Networks [PDF]
Sensors, 2018 We study the placement of gateways in a low-power wide-area sensor network, when the gateways perform interference cancellation and when the model of the residual error of interference cancellation is proportional to the power of the packet being ...
Hongxian Tian +2 more
doaj +2 more sources
Practical Experiences of a Smart Livestock Location Monitoring System Leveraging GNSS, LoRaWAN and Cloud Services [PDF]
Sensors, 2021 Livestock farming is, in most cases in Europe, unsupervised, thus making it difficult to ensure adequate control of the position of the animals for the improvement of animal welfare.
Mike O. Ojo +3 more
doaj +2 more sources
Sub-GHz Band Communication Bridge Connecting TCP/IP Network [PDF]
EAI Endorsed Transactions on Internet of Things, 2019 Recently, low power wide area (LPWA) communication devices have attracted attention in the construction of wide area sensor networks. A type of LPWA device called a sub-GHz band communication device allows a 1-hop wide area communication system to have ...
Satoshi Kodama, Rei Nakagawa
doaj +1 more source
A Survey on LPWAN-5G Integration: Main Challenges and Potential Solutions
IEEE Access, 2022 The popularity of Internet of Things (IoT) has resulted in increased deployments of Low Power Wide Area (LPWA) technologies for both commercial and private services due to their performance and cost advantages.
Yu Chen +3 more
doaj +1 more source