How does Bluetooth use frequency hopping for security?
Answer Posted / 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 |
Post New Answer View All Answers
Can you please explain the difference between bluetooth and infra red?
Explain the different classes in bluetooth?
What companies are involved in the Bluetooth initiative?
When are packets passed from TCP layer to application layer?
What is Service Discovery Protocol?
Will bluetooth and wireless lan interfere with each other?
How does Bluetooth fit in with WiFi?
What are the other (competing or not) wireless technologies?
What types of routing are possible in a wireless network?
Explain the difference between bluetooth and infrared?
Which method is primarily used for Voice transfer?
give the new arrival of bluetooth in wifi
what is ldap and its uses?
What are the Technology characteristics of Bluetooth?
What kind of encryption will be used for Bluetooth security?