August 2003
Beginner to intermediate
288 pages
6h 51m
English
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Chapter 1. Wireless Networking Fundamentals
To understand Wireless Networking, there are two things that are fundamental: Transmission Control Protocol/Internet Protocol (TCP/IP) and radio waves. TCP/IP governs how data flows across the Internet, whether it is over a dial-up modem, a cable modem, or a wireless network. Radio waves surround us; some carry useful information, others are just noise. This book is more concerned with the former, but the noise is of interest too, since it can drown out the useful signals. The first half of this chapter explains TCP/IP, and the second discusses radio waves. The rest of this book looks at how the two work together.
TCP/IP
Most of the concepts presented in this book require a basic understanding of TCP/IP, the networking standard used by the Internet as well as home or office connections. To understand TCP/IP, you’ll need to know how computers identify one another (IP addresses), talk to their immediate neighbors (subnet addressing), and talk to machines on the Internet or other networks (routing).
IP Address
TCP/IP stands for Transmission Control Protocol/Internet Protocol. It is a set of protocols that enable computers on the network to communicate with one another. (A protocol defines how data is transmitted between computers; if both computers adhere to the same protocol, they can exchange data.)
On a TCP/IP network, each computer (also called a host) has an IP address. An IP address is much like a Social Security number: it uniquely identifies ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.