However, in the near future with the increasing pace of IoT deployments, applications tend to become more dynamic where the requirements can vary over time and with the type of data being exchanged. Here, a single communication technology suffices to their needs. Many present day IoT applications are simple and stand-alone, having limited and static requirements. Thus, it is very important to choose the wireless communication technology as per the application demands. Also, different IoT applications have different requirements regarding these parameters. and it is not possible to get the best of all when picking a single technology. Each wireless communication technology has its own characteristics in terms of range, throughput, latency, reliability, downlink availability, security, energy consumption, device and deployment cost, etc. Devices using IoT are expected to be in the billions and the ability of wireless communication is an indigenous part of each of them. Using a prototype implementation of this architecture, an in-depth assessment of handover and its resulting latency is performed.īy bridging our physical and virtual worlds and paving the way for interactions between humans and machines, IoT is finding uses in an increased number of applications. A suitable end-to-end architecture for the targeted multimodal communication is presented. It analyses the challenges incurred by different protocol stack options, such as different transfer modes (IP versus non-IP), the use of Static Context Header Compression (SCHC) techniques, and Datagram Transport Layer Security (DTLS) security modes, and discusses the impact of handover between both communication technologies. This paper considers the combination of Narrow Band IoT (NB-IoT) and Bluetooth Low Energy (BLE) as communication options for an IoT device that is running a Lightweight Machine to Machine/Constrained Application Protocol (LwM2M/CoAP) protocol stack. ![]() This is pushing the design towards multimodal approaches, where different wireless IoT technologies are combined and the most appropriate one is used as per the need. ![]() However, the requirements of more demanding IoT use cases can vary over time and with the type of data being exchanged. For simple IoT applications, communication requirements can be fulfilled by a single technology. For instance, Low-Power Wide-Area Network (LPWAN) technologies offer low data rate communication over long distance, whereas Wireless Personal Area Network (WPAN) technologies can reach higher data rates, but with a reduced range. The wireless Internet of Things (IoT) landscape is quite diverse.
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