From the course: Cisco Certified Support Technician (CCST) Networking Cert Prep

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Wireless standards

Wireless standards

From the course: Cisco Certified Support Technician (CCST) Networking Cert Prep

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Wireless standards

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(gentle music) - [Presenter] When you're working with Wi-Fi networks, you're going to be faced with a variety of Wi-Fi standards. And in this video we want to identify at a high level what some of those standards are, what the maximum theoretical bandwidth is for each standard, when they came out, and how data gets transmitted using that standard. Then in the next few videos, we're going to take a look at some of the underlying technologies that led to bandwidth improvements over the years. But it all goes back to 1997, with the original 802.11 standard, which we can refer to as Wi-Fi zero. This used the 2.4 gigahertz band and the maximum theoretical bandwidth was not very much at only one or two megabits per second. The transmission method used was direct sequence spread spectrum or frequency hopping spread spectrum. In our next video, we're going to consider the operation of direct sequence spread spectrum, but the big difference with frequency hopping spread spectrum is the carrier…

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