Internet of Things: Architectures, Protocols, and Applications

<div>Smart watches and fitness trackers (source: <a href="https://www.pebble.com/">https://www.pebble.com/</a> and <a href="http://www.fitbit.com/">http://www.fitbit.com/</a>).</div>

Journal of Electrical and Computer Engineering

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Figure 4

Figure 4: Internet of Things: Architectures, Protocols, and Applications 