A Communication Framework for Image Transmission through LPWAN Technology

Abstract

Analyzing the conditions of use and selecting which technology is more efficient to apply is required when transmitting information through wireless networks.The Internet of Things (IoT) has gained traction in industry and academia as a paradigm in which information and communication technologies merge to deliver unique solutions by detecting, actuating, calculating, and sharing massive volumes of data via embedded systems. In this scenario, Low-Power Wide-Area Networks (LPWAN) appear to be an attractive solution for node connectivity. Typical IoT solutions demand flexible restrictions for wireless communication networks in terms of data rates and latency in exchange for having larger communication ranges and low energy consumption. Nonetheless, as the amount of data and data speeds demanded for particular applications increase, such as image transmissions, IoT network connectivity deteriorates. This paper proposes a communication architecture for image transmission across LPWAN networks utilizing LoRa modulation. The framework combines image processing techniques (classification, compressive sensing (CS), and reconstruction) with an investigation of LoRa modulation parameters using a Software-Defined Radio (SDR) environment. The results show that is possible to communicate an image of 128×128 pixels with four packets and one frequency channel in 2.51 s.

Data Collection in Areas without Infrastructure Using LoRa Technology and a Quadrotor

“…One of the critical characteristics of LoRa is its unique modulation, which allows its coexistence and operation with other RF technologies [14]. So, the use of this type of transmission is suitable for interactions with the UAV and its multiple modules, which usually use different types of UHF transmissions [15].…”

Monitoring DC Motor Based On LoRa and IOT

“…The development of low-power wide-area network (LPWAN) technologies has generated a great deal of interest and helped make Internet of Things (IoT)-based applications very popular [15]- [18]. Most LPWANs operate in the unlicensed industrial, scientific, and medical (ISM) bands, depending on the deployment area [19], [20]. A LoRa-based network link is a wireless communication system that transmits data over a great distance using long-range, lowpower radio frequency transmissions [21]- [23].…”