Abstract
Long-Range Wide-Area Network (LoRaWAN) enables flexible long-range service communications with low power consumption which is suitable for many IoT applications. The densification of LoRaWAN, which is needed to meet a wide range of IoT networking requirements, poses further challenges. For instance, the deployment of gateways and IoT devices are widely deployed in urban areas, which leads to interference caused by concurrent transmissions on the same channel. In this context, it is crucial to understand aspects such as the coexistence of IoT devices and applications, resource allocation, Media Access Control (MAC) layer, network planning, and mobility support, that directly affect LoRaWAN’s performance. We present a systematic review of state-of-the-art works for LoRaWAN optimization solutions for IoT networking operations. We focus on five aspects that directly affect the performance of LoRaWAN. These specific aspects are directly associated with the challenges of densification of LoRaWAN. Based on the literature analysis, we present a taxonomy covering five aspects related to LoRaWAN optimizations for efficient IoT networks. Finally, we identify key research challenges and open issues in LoRaWAN optimizations for IoT networking operations that must be further studied in the future.
Highlights
The growth of the emerging IoT technology has dramatically changed society worldwide through a disruptive technology ecosystem in new sets of application verticals [1]
We focus on: (i) in-depth analysis of state-of-the-art Long-Range Wide-Area Network (LoRaWAN) optimization solutions for IoT networking operations; (ii) a taxonomy that covers five aspects related to LoRaWAN optimizations for efficient IoT network; (iii) identify key research challenges and open issues in the area of LoRaWAN optimizations for IoT networking operations
CONTRIBUTIONS We summarize the main research contributions of this article as follows: (a) We present a systematic review of the state-of-the-art results focusing on specific aspects that affect the LoRaWAN performance, including co-existence of IoT devices and applications, resource allocation mechanisms, Media Access Control (MAC) layer protocols, network planning, and mobility issues
Summary
The growth of the emerging IoT technology has dramatically changed society worldwide through a disruptive technology ecosystem in new sets of application verticals [1]. IoT applications have many requirements including (i) low energy consumption (to adapt to devices with 10-year battery life), (ii) high coverage, and (iii) widespread mMTC [15]–[17]. In this way, the wireless communication technology used to transmit the collected IoT data plays a vital role in the massive adoption and deployment of IoT
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