fading channel .........please anyone can help me

please can anybody help me in this matlap problem

the required ::::


* genearte large no of bits using randint

* modulate the data once with bpsk & then 16-QAM

* bpsk mod is 2*data-1

* after modulation u should loop on the data with step of 64's

each time calculating their ifft

* add the noise to each 64

* if u remeber how to add noise then do it as u know,
else use awgn

sigandnoise=awgn(signal, SNR in dB , 'measured' )

* do fft with steps of 64's , the same groups of symbols that were ifft'ed

* demodulate the data ( if bpsk then bits= recdata > 0)

*calculate ber using
ber=sum(xor( transmitted bits , received bits ) )

* the whole program should be done in a large loop that loops over

SNR -5 -> 15

* in case of fading
multiply with channel before ifft then divide after ifft

* multiplication is done using (.*) not just (*)

Added after 10 minutes:

mitoo2007 said:

please can anybody help me in this matlap problem

the required ::::


* genearte large no of bits using randint

* modulate the data once with bpsk & then 16-QAM

* bpsk mod is 2*data-1

* after modulation u should loop on the data with step of 64's

each time calculating their ifft

* add the noise to each 64

* if u remeber how to add noise then do it as u know,
else use awgn

sigandnoise=awgn(signal, SNR in dB , 'measured' )

* do fft with steps of 64's , the same groups of symbols that were ifft'ed

* demodulate the data ( if bpsk then bits= recdata > 0)

*calculate ber using
ber=sum(xor( transmitted bits , received bits ) )

* the whole program should be done in a large loop that loops over

SNR -5 -> 15

* in case of fading
multiply with channel before ifft then divide after ifft

* multiplication is done using (.*) not just (*)

Click to expand...

what do you want to do? OFDM in fading channel?

Communications_Engineer said:

what do you want to do? OFDM in fading channel?

Click to expand...

i want this requirments:::-

report(OFDM):

* genearte large no of bits using randint

* modulate the data once with bpsk & then 16-QAM

* bpsk mod is 2*data-1

* after modulation u should loop on the data with step of 64's

each time calculating their ifft

* add the noise to each 64

* if u remeber how to add noise then do it as u know,
else use awgn

sigandnoise=awgn(signal, SNR in dB , 'measured' )

* do fft with steps of 64's , the same groups of symbols that were ifft'ed

* demodulate the data ( if bpsk then bits= recdata > 0)

*calculate ber using
ber=sum(xor( transmitted bits , received bits ) )

* the whole program should be done in a large loop that loops over

SNR -5 -> 15

* in case of fading
multiply with channel before ifft then divide after ifft

* multiplication is done using (.*) not just (*)



6 graphs

1-BER for BPSK for AWGN channel.
2-BER FOR 16-QAM for AWGN channel.
3-BER for BPSK for AWGN+fading channel.
4-BER for 16-QAM for AWGN+fading channel.
5-BER for BPSK for AWGN+Coding channel.
6-BER for BPSK for Fading+Coding channel.