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The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) cellular network is a promising system for machine-type communications (MTC). However, random access overload becomes a severe issue with the emerging massive number of MTC devices (MTCDs) in LTE network. To solve the problem, access class barring (ACB) and timing advance (TA) command comparison are two effective schemes by limiting...
One of the challenges faced by today's Internet of Things (IoT) is to efficiently support machine-to-machine communication, given that the remote sensors and the gateway devices are connected through low bandwidth, unreliable, or intermittent wireless communication links. In this paper, we quantitatively compare the performance of IoT protocols, namely MQTT (Message Queuing Telemetry Transport), CoAP...
The emergence of the Internet of Things (IoT) is introducing more and more services and applications such as smart cities. For some services, the availability of elements and the connectivity between them are necessary. The robust functioning of a fragile and often dynamic system in IoT needs strong monitoring which is investigated in this paper. IPv6 Routing Protocol for Low Power and Lossy Networks...
The Internet of Things (IoT) is a new paradigm that envisions ubiquitous connectivity. It provides new ways in which distributed systems can be imagined with devices communicating with each other and also with humans. The data provided by such a large, heterogeneous network can be leveraged to provide enhanced services to society and solve problems previously deemed impossible. Most devices in IoT...
Recent advancements in the “Internet of Things” allowed “Things” or “nodes” to have virtual identities and exchange data and services. “Things” form distributed systems which lack central control and have flexible topologies. In this context, it is crucial to have a robust, scalable and adaptive trust model for trustworthy node communication between nodes (i.e., Things). In this paper, A Context-based...
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