Chapter 14 / 14.9 / 14.9.7

14.9.7 How Does Wi-Fi Work?

Explains how wireless local area networks provide network access without cables. Describes Wi-Fi architecture, medium access, modern physical-layer technologies, and the evolution of IEEE 802.11 from early wireless LANs to today's multi-gigabit systems.

1. What Is Wi-Fi?
2. How Does a Wi-Fi Network Operate?
3. What Is an Access Point?
4. What Is a Basic Service Set?
5. How Do Large Wi-Fi Networks Cover Entire Buildings?
6. How Do Many Devices Share the Same Radio Channel?
7. How Does Wi-Fi Transmit So Much Data?
8. What Is MIMO?
9. Why Does Wi-Fi Use Different Frequency Bands?
10. Why Does Wi-Fi Performance Vary?
11. How Has Wi-Fi Improved Over Time?
12. Will Wi-Fi Replace Ethernet?
13. What Should You Remember?

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