CCMP
Counter
CGI
The Common Gateway Interface (CGI) is a standard for running external programs from an HTTP server.
It specifies how to pass arguments to the executing program as part of the HTTP request. It may also define a set of environment variables.
A CGI program is a common way for an HTTP server to interact dynamically with users. For example, an HTML page containing a form can use a CGI program to process the form data after it is submitted.
Channel
The Channel defines the portion of the radio spectrum the radio uses for transmitting and receiving.
Each 802.11 standard offers a number of channels, dependent on how the spectrum is licensed by national and transnational authorities such as the Federal Communications Commission (FCC), the European Telecommunications Standards Institute (ETSI), the Korean Communications Commission, or the Telecom Engineering Center (TELEC).
CSMA/CA
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is a
CSMA/CA is the basis of the IEEE 802.11e Distributed Control Function (DCF).
The CSMA/CA protocol used by 802.11 networks is a variation on CSMA/CD (used by Ethernet networks). In CSMA/CD the emphasis is on collision detection whereas with CSMA/CA the emphasis is on collision avoidance.
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