Components of A Beacon Frame
Beacon frame consist of MAC header, Frame body and FCS. Some of the fields are listed below.
- Timestamp
-
- After receiving the beacon frame all the stations change their local clocks to this time. This helps with synchronization.
- Beacon interval
-
- This is the time interval between beacon transmissions. The time at which a node (AP or station when in Ad-hoc) must send a beacon is known as Target Beacon Transmission Time (TBTT). Beacon interval expressed in Time Unit (TU). It is a configurable parameter in the AP and typically configured as 100 TU.
- Capability information
-
- Capability information field spans to 16 bits and contain information about capability of the device/network. Type of network such as AdHoc or Infrastructure network is signaled in this field. Apart from this information, it announce the support for polling, encryption details also.
- SSID
- Supported rates
- Frequency-hopping (FH) Parameter Set
- Direct-Sequence (DS) Parameter Set
- Contention-Free (CF) Parameter Set
- IBSS Parameter Set
- Traffic indication map (TIM)
Read more about this topic: Beacon Frame
Famous quotes containing the words components of a, components of, components, beacon and/or frame:
“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)
“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)
“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)
“It illumineth the face, which as a beacon gives warning to all the rest of this little kingdom, man, to arm ... this valor comes of sherris.”
—William Shakespeare (1564–1616)
“Candor is a proof of both a just frame of mind, and of a good tone of breeding. It is a quality that belongs equally to the honest man and to the gentleman.”
—James Fenimore Cooper (1789–1851)