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Northern Virginia Community College - BUSINESS 202IOT 1 Internet of Things

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The Internet of Things (IoT) is a framework in which all things have a representation and a presence in the Internet. More specifically, the Internet of Things aims at offering new applications and ... services bridging the physical and virtual worlds, in which Machine-to-Machine (M2M) communications represents the baseline communication that enables the interactions between Things and applications in the cloud. In other words, it is the interconnection via the Internet of computing devices embedded in everyday objects, enabling them to send and receive data. For the purposes of this paper, the terms “Internet of Things” and “IoT” refer broadly to the extension of network connectivity and computing capability to objects, devices, sensors, and items not ordinarily considered to be computers. These “smart objects” require minimal human intervention to generate, exchange, and consume data; they often feature connectivity to remote data collection, analysis, and management capabilities. Internet of Things Communications Models From an operational perspective, it is useful to think about how IoT devices connect and communicate in terms of their technical communication models. The discussion below presents this framework and explains key characteristics of each model in the framework. Device-to-Device Communications The device-to-device communication model represents two or more devices that directly connect and communicate between one another, rather than through an intermediary application server. These devices communicate over many types of networks, including IP networks or the Internet. Often, however these devices use protocols like Bluetooth,40 Z-Wave,41 or ZigBee42 to establish direct device-to-device communications. These device-to-device networks allow devices that adhere to a particular communication protocol to communicate and exchange messages to achieve their function. This communication model is commonly used in applications [Show More]

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