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802.11 FHSS
Frequency-hopping spread spectrum in a 2.4 GHz band
Carrier sends on one frequency for short duration then hops to another frequency for same duration, hops again to another for same amount of time and so on
Spreading adds security since only sender and receiver agree on sequence of allocated bands
Contention is handled by MAC sub layer since all stations use the same sub bands
Pseudorandom number generator chooses the hopping sequence
Data rate is of 1 or 2 Mbps
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When the signal hits to each other, collision accord.
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The Physical layer deals with the definite physical medium and the method of transporting 1s and 0s.
Link State Packet When a router floods the network with information about its neighbourhood. It is said to be advertising. The basis of this advertising is a short pack
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