Wireless networking basics

- [Instructor] Based on the data communication capability…over a communication link, we can make the…data communication happen over a communication path…consisting of multiple links in a wireless network.…This example shows the wireless network consisting…of multiple nodes where any two nodes can communicate…with each other through the communication path.…Though nodes, often equipped with sensors or actuators,…are sometimes called wireless sensor nodes, or motes.…

For example, a wireless thermostat…reporting the room temperature readings…can be considered as a wireless sensor node.…We've talked about the protocols as a component…in the communication system before.…It plays a key role in the wireless network.…Let's explain it based on a simple…hello message transmission application here.…If node one wants to send hello message…to node six, node one and node six…need to encode message to the signals…and a decode in the same way following…a communication protocol because we're transmitting…the message through a communication path in a network.…