IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:
Definition of radio frequency signal
Radio frequency characteristics
Radio frequency behaviors
Free space path loss
To fully understand the 802.11 technology, you need to have a clear concept of how wireless works at the first layer of the OSI model, and at the heart of the Physical layer is radio frequency (RF) communications.
In a wired LAN, the signal is confined neatly inside the wire, and the resulting behaviors ...