Experimental Evaluation of the Availability of LoRaWAN Frequency Channels in the Czech Republic

Abstract

LoRaWAN communication allows you to create IoT (Internet of Things) solutions across many disciplines. A specific field of application is precision agriculture, which demands this technology mainly due to the fact that it is possible to create low power sensor devices with it. However, in densely populated areas, a lower success rate of message delivery can be observed on some communication channels. For example, this can have an impact on urban agriculture projects. After performing an experiment and analytical–statistical data processing using the Geographic Information System (GIS) tool ArcGIS Insights, it was shown that the success of message delivery on the basic LoRaWAN channel (868.3 MHz) is lower than for the others. Therefore, to ensure higher reliability and thus energy savings, it is appropriate to optimize the use of frequency channels.

New Results for the Error Rate Performance of LoRa Systems over Fading Channels

“…where xN is the expectation of the RV ρ 2 , which, by employing the memoryless property of the exponential distribution [21], can be deduced as (17). Using (11), the expectation in ( 18) can be further written as…”

“…Among all available LPWAN protocols, the so-called LoRa (Long Range) technology [6] has emerged as a promising candidate for smart sensing technology for civil (e.g., environment and health monitoring, smart metering, precision agriculture) and industrial applications, in urban and rural environments, due to its long-range and low-power capabilities. LoRa modulation is a 3GPP standard based on the chirp spread-spectrum (CSS) technology [7][8][9][10][11][12][13][14][15][16][17][18][19][20] and uses the industrial, scientific and medical (ISM) frequency bands at 433 MHz, 868 MHz or 915 MHz with data rates of up to 50 kbps.…”

Re-Learning EXP3 Multi-Armed Bandit Algorithm for Enhancing the Massive IoT-LoRaWAN Network Performance

“…The LoRaWAN network uses star-of-star network topology with single-hop as shown in Figure 1 to keep network complexity as simple as possible and maximize energy saving. It has simplicity in the configuration in addition to the firmware updates that can be sent over the air [5,6]. That makes LoRaWAN efficient in terms of the deployment cost.…”