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The channel coefficient H is the path gain from transmit antennas Tx to receive antennas Rx
So I don't know how may calculate it as a fixed value ?? or what the relation to calculate it.
This H , it is h in Alamouti Paper"A Simple Transmit Diversity Technique
for...
Good Day to all
Dear friends ,
I'm asking if there is a relation to calculate the channel H.
However as I think in most of STBC , they assume that the receiver has perfect channel state information (CSI).
But one Dr. asked me to calculate it exactly ....so i'm little supprized because...
Thank you for reply ..
Yes, u r right that the first thing i did ..
But I dont use any factor or normalization or anything ..just multiplies the channel with 1/sqr(2)
That is all.
Thank you again
Great Day to all...
Kindly I'm facing a problem with OSTBC simulation that I got (-2dB )to (-3dB ) different than the original on all ranges of the curve of BER with SNR for all OSTBC and all modulation types.
For example when I have QPSK- Alamouti 2Tx with 2Rx, in 10^-2 it is 4.6dB while...
achieve meaning and value
Hello Friends..
I was think that full diversity its mean:
That every antenna should transmit all symbols in the block ..
i.e
If we have two Tx and Two Rx , and 4 symbols to transmit s1 s2 s3 s4 ..
we said the system is full diversity when
Tx1 transmit s1 s2 s3 s4...
Dear Friends
Kindly anyone know about the differences with definitions of :-
Coding Gain
Coding Rate
Transmit Rate
Recieve Rate
Diversity Rate
Information Bits Rate
Codeword Rate
Thank You.
Regards
Hi Friend
Did you got answers for ur Qs , please let us know what you got.This white paper is a gift.
Thank you
Regards
Added after 2 minutes:
Sorry forget the file:D
Hi I think LDPC better and this Qu. prove that:
"The advantages of LDPC codes over CTC codes are
from several aspects, first, the implementation of LDPC
codes are relatively light in area space (125 Kgates),
the ratio of memory with respect to the total area is
distinctively high. Second, unlike...
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