Explanation material "Basic Knowledge of Short-Range Wireless Communication (Wi-Fi)"

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last updated：Dec 15, 2025

IPROS Tech Note

Introducing an overview and evolution of networks and communication methods with a focus on Wi-Fi. Security measures are also explained.

This document summarizes and explains the basics of networks and wired/wireless communication with a focus on Wi-Fi. Chapter 1 introduces an overview of networks, LANs, and the Internet. From Chapter 2, it explains the types of wireless communication, the procedures for communication, the evolution of LANs, connection examples, as well as the features, standards, and security measures of Wi-Fi. 【Contents】 1. Communication Networks 2. Mechanism of Wireless Communication 3. Mechanism of LAN 4. Mechanism of the Internet 5. Wi-Fi Standards 6. Wi-Fi Connection and Expansion *The document can be viewed immediately by downloading the catalog.

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【Table of Contents (Excerpt)】 ■What is a Network?　　■What is a LAN?　　■What is the Internet? ■Transition from Terrestrial Analog Broadcasting　　　■Short-range Wireless Communication Used in Everyday Life ■What is Ethernet?　　■LAN and WAN　　■From TCP/IP to the Spread of the Internet ■Connecting to the Internet　　　　　　■Business Development on the Internet ■Using Wi-Fi Outside of Home or Office ■What is Public Wireless LAN (Free Wi-Fi)? ■What is SSID (Service Set Identifier)? ■Ensuring Security　■Measures Against Information Risks