What are the various technologies employed by wireless devices to maximize t

 
What are the various technologies employed by wireless devices to maximize their use of the available radio frequencies? Also discuss methods used to secure 802.11 wireless networking in your initial thread.
Provide an outside source (for example, an article from the UC Library) that applies to the topic, along with additional information about the topic or the source (please cite properly in APA 7)
At least one scholarly source should be used in the initial discussion thread. Be sure to use information from your readings and other sources from the UC Library. Use proper citations and references in your post.