Research and development of ultra-low power LoraWan sensor node

Tokmakov, Dimitar; Asenov, Stanislav; Dimitrov, Svetoslav M.

doi:10.1109/et.2019.8878674

Cited by 16 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Class A: This class of LoRaWAN devices has the lowest power consumption. Class A devices spend most of their time in sleep mode [21,22]. In Class A, after the device sends an uplink, it listens for a message from the receive windows RX1 and RX2 after the uplink before going back to sleep, as shown in Figure 2.…”

Section: Iot Lora Communicationmentioning

confidence: 99%

Implicit Overhearing Node-Based Multi-Hop Communication Scheme in IoT LoRa Networks

Mugerwa

Nam

Choi

et al. 2023

Sensors

View full text Add to dashboard Cite

Long range (LoRa) is a low-power wide-area technology because it is eminent for robust long-distance, low-bitrate, and low-power communications in the unlicensed sub-GHz spectrum used for the Internet of things (IoT) networks. Recently, several multi-hop LoRa networks have proposed schemes with explicit relay nodes to partially mitigate the path loss and longer transmission time bottlenecks of the conventional single-hop LoRa by focusing more on coverage expansion. However, they do not consider improving the packet delivery success ratio (PDSR) and the packet reduction ratio (PRR) by using the overhearing technique. Thus, this paper proposes an implicit overhearing node-based multi-hop communication (IOMC) scheme in IoT LoRa networks, which exploits implicit relay nodes for performing the overhearing to promote relay operation while satisfying the duty cycle regulation. In IOMC, implicit relay nodes are selected as overhearing nodes (OHs) among end devices with a low spreading factor (SF) in order to improve PDSR and PRR for distant end devices (EDs). A theoretical framework for designing and determining the OH nodes to execute the relay operations was developed with consideration of the LoRaWAN MAC protocol. Simulation results verify that IOMC significantly increases the probability of successful transmission, performs best in high node density, and is more resilient to poor RSSI than the existing schemes.

show abstract

Section: Iot Lora Communicationmentioning

confidence: 99%

Implicit Overhearing Node-Based Multi-Hop Communication Scheme in IoT LoRa Networks

Mugerwa

Nam

Choi

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…The integration of the PoF technology for powering smart remote IoT home nodes in the most efficient way is a major challenge in these future networks. The rapid growth in low-power integrated circuits allow the possibility of IoT devices with power consumption of few microwatts [23]. The consideration of the wired/wireless solution to connect these in-home IoT ecosystem is of great importance.…”

Section: Power Over Fiber Integration In Indoor Solutionsmentioning

confidence: 99%

SI-POF Supporting Power-Over-Fiber in Multi-Gbit/s Transmission for In-Home Networks

Al-Zubaidi

Montero

Vázquez

2021

J. Lightwave Technol.

View full text Add to dashboard Cite

We propose the integration of power-over-fiber (PoF) in home networks with multi Gbit/s data transmission based on wavelength-division-multiplexing (WDM) in step-index plastic optical fibers (SI-POF). Different powering architectures are described. The efficiencies of different components are discussed to address the maximum remote energy that can be delivered. Experimental results show the ability of the system to deliver several mW of optical power with negligible data signal quality degradation and with BER of 1×10-10. The potential of utilizing PoF in combination with low-loss WDM-POF to optically powering multiple devices for specific in-home applications and IoT ecosystems is discussed. A PoF scalability analysis is detailed.

show abstract

“…This depended on the individual transmission. How to achieve the best consumption will be analyzed by this resource [10]. An important part that has not yet been mentioned is the antenna.…”

Section: Functionality Testmentioning

confidence: 99%