Image Transmission via LoRa Networks – A Survey

Long Range (Lora) technology is assumed to be the subsequent of the wireless communication for the Internet of Things (IoT). Although LoRa provides emulative characteristics, such as a wider cover range, lower expenditure and decreased energy consumption, the usable narrow bandwidth for physical layer modulation in LoRa makes it inapplicable for high bit rate data transmission from devices like visual sensors. Nevertheless, because data from images are larger than those that origin from sensors, one of the main problems of visual IoT is the efficiency of image transmission in networks where bandwidth is narrow. This paper, aims at reviewing the available methods applied to transfer images via LoRa infrastructure, for the first time in the literature. The limitations of each method are pointed out and the challenges that need to be handled in the future are also defined towards establishing a reliable image transfer over a LoRa network.

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