Wi-Fi Network Access for Currently Unconnected Things (IoT)
Wi-Fi Network Access for Currently Unconnected Things (IoT)
For objects with extremely low power
requirements to send information across the network, several short-range
wireless communication protocols exist. In some cases, these protocols are not
IP-enabled and must forward information to a connected IP-enabled device, such
as a controller or gateway.
Each protocol for more details.
6LoWPAN arose
from the need to include extremely low-powered devices with limited processing
capabilities as part of IoT, for example, smart meters in a small network.
Near field communication
(NFC) is a standard for communicating between things in very close
proximity, usually within a few inches. For example, NFC works at point of sale
between an RFID tag and the reader.
ZigBee is another
example of an 802.15 protocol suite that uses pairing between a specified
source and destination. An example is between a door sensor and a security
system that sends an alert when the door is opened.
The Bluetooth
protocol is typically used between devices that are in close range, such as a
smartphone connection to a Bluetooth-enabled headset, or a Bluetooth-enabled
wireless keyboard connected to a computing device.
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