How does Bluetooth use frequency hopping for security?
Answer / devesh johar
frequency hopping is a spread spectrum technique in which
the transmitter transmits at varying frequencies for very
small periods of time say milli or nano sec. these
frequencies are choosen in random among the frequency band
available. the reciever and tansmitter both are aware of
the sequence of the frequencies going to be used.
if some other agent tries to break the system and suppose
tunes to a particular frequency then he'll be able to get
that small part of the msg only because from next milli
sec, the frequency is going to change hence through this
wide band and secure transmission is achieved.
used in bluetooth as well as in Wireless lans.
there are 69 frequency bands in bluetooth and hopping rate(
rate of switching from one freq. to other) is around 1600
hops/sec
Is This Answer Correct ? | 3 Yes | 6 No |
What is lmp (link management protocol)?
why is bluetooth 2.0 better than previous versions?
How secure a Bluetooth device is?
What is it - a technology, a standard, an initiative, or a product?
Differences between bluetooth and wi-fi?
What is broadcast?
What are the other wireless technologies?
what is IP spoofing?
Which company originally conceived and developed Bluetooth?
what is ldap and its uses?
What are the different power classes in bluetooth
What method is used for voice transfer?