Low-power Wide Area Networks (LPWANs) constitute a type of networks which is used to connect things to the Internet from a wide variety of sectors. These types of technologies provide the Internet of Things (IoT) devices with the ability to transmit few bytes of data for long ranges, taking into consideration minimum power consumption. In parallel, IoT applications will cover a wide range of human and life needs from smart environments (cities, home, transportation etc.) to health and quality of life. Among these popular LPWANs technologies, we have identified the unlicensed frequency band (LoRa, DASH7, SigFox, Wi-SUN, etc.), and the licensed frequency band standards (NB-IoT, LTE Cat-M, EC-GSM-IoT, etc.). In general, both types of standards only consider fixed interconnected things, and less attention has been provided to the mobility of the things or devices. In this paper, we address the mobility of the things and the connectivity in each of the three LPWAN standards: LoRaWAN, DASH7, and NB-IoT. In particular, we show how the mobility of things can be achieved when transmitting and receiving data. Then, we provide a general and technical comparison for the three standards. Finally, we illustrate several application scenarios where the mobility is required, and we show how to select the most suited standard. We also discuss the research challenges and perspectives.

No abstract

No abstract

In this paper, we discuss a set of solutions that are proposed in order to run IPv6 over IoT and we investigate its applicability over the three Low Power Wide Area Networks (LPWANs) technologies: LoRaWAN, DASH7, NB-IoT. LPWANs are wireless technologies that are used to connect things to the Internet. These technologies are characterized by their large coverage area, long battery operation, low bandwidth, small frame payload size, and the use of asymmetric and non-synchronized communication. Based on this investigation, we highlight the schemes that can be adopted for IP-based LPWANs technologies.

No abstract

No abstract

Recently, the evolution of low-power wide area networks (LPWANs) provides Internet of Things (IoT) with an approach between the short range multi-hop technology and the long-range single-hop cellular network technology. LPWANs provide connectivity by using long-range communication with low data rate in unlicensed bands. They are developed to satisfy the requirements of IoT communication needs, but less attention is given to the mobility of the End-Devices (EDs). In this paper, we consider DASH7 which is a well-defined LPWAN standard provided by DASH7 Alliance. After a brief overview of this technology, we focus on EDs mobility to show how the mobility can be achieved while transmitting data. An appropriate testbed is setup for testing. Experimental results show the mobility delay time for an ED to switch between two gateways (GWs).

No abstract