Answer Posted / debasis gayen
Adaptive equalization is a
solution
specifically designed to
counteract
the problem of time
dispersion. It
works as follows:
1. A set of predefined
known bit
patterns exist, known as
training
sequences. These are known
to the
BTS and the MS (programmed
at
manufacture). The BTS
instructs the
MS to include one of these
in its
transmissions to the BTS.
2. The MS includes the
training
sequence in its
transmissions to the
BTS. However, due to the
problems
over the radio path, some
bits may be
distorted.
3. The BTS receives the
transmission
from the MS and examines the
training sequence within
it. The BTS
compares the received
training
sequence with the training
sequence
which it had instructed the
MS to use.
If there are differences
between the
two, it can be assumed that
the
problems in the radio path
affected
these bits must have had a
similar
affect on the non-training
sequence
bits.
4. The BTS begins a
process in which it
uses its knowledge of what
happened
the training sequence to
correct the
other bits of the
transmission.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
why odd number of lines used for scanning
Why series inductor and l-section filters cannot be used with half-wave rectifiers?
Which frequency would a frequency-counter count , if it is connected to an antenna that is recieving several frequencies close to each other in amplitude?
What is the importance of the biasing in transister circuits?
What are different categories of antenna and give an example of each?
WHICH TYPES OF QUESTION & WHICH BEST BOOK IN PREPARING FOR COMMUNICATION ?
i am electronics & telecomm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you. NAZEEHA E.MAIL ID:- km.nazi.km@gmail.com
hI, I AM A BE GRADUATE. WILL U LET ME KNOW WHAT TYPE OF OFFICER POSTS ARE AVAILABLE FOR MY QUALIFICATION IN SBI BANK? WHETHER THERE ARE ANY SCALE OF PAY DIFFERENCE FOR THE REST OF THE OFFICER POST AND THE POST THAT IS UNIQUE FOR ENGINEERS?
How many 2-way Combiner use in 4+4+4.
What is a step-recovery diode and why is it so called ?
What are edge triggered flip flop?
what is the types of transmission
Explain why is the diffusion technique of formation of resistor most widely used?
whan type of controller is used in power plant?
Please send me the sample pattern for the Electronics and communication for the post in RRB s&T to my Email ID : sivamec6034@gmail.com
