Image Transmission Using LoRa Technology with Various Spreading Factors

Abstract

With the development of technology, today's Internet of Things (IoT) is not only to read the value of the sensor to monitor the system. The demand for image monitoring is also important. In this paper, we use LoRa (Long Range) technology to transmit the images. LoRa technology is defined on Low Power Wide Area Networks technology (LPWAN) of the IoT. In general, LoRa supports the transmission of small data coming from the sensors. Since it has these features with low power, long distance, low cost and low data rate, transmitting images will spend more time for LoRa. If LoRa transmission can decrease the time to transmit pictures, it will produce a wide range of applications in IoT system. In this paper, we focus on transmitting the image simultaneously with both different SF (Spreading Factor) parameters and antennas for LoRa. In other words, using various SF as the multiplexing method may improve the image transmission time. Through experiments, this method does have less time than that with a single SF. The results show that effective LoRa image transmission is possible.