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asma atala (@asmaatala)


Re: Differential coding for ICI cancelation

Reply posted 7 years ago (05/15/2017)
"Even though a frequency offset introduces a time-varying phase error, as long as this error changes slowly relative to the symbol rate, the differential phase from...

Differential coding for ICI cancelation

New thread started 7 years ago
Differential QPSK (DQPSK)  is used with OFDM to transmit data over wireless fading channel. Is differential coding enough to solve the proplem of subcarriers phase...

Re: OFDM sampling

Reply posted 7 years ago (05/13/2017)
Dear mukul,Your answer very clear and helped me alot, thansk for help,your words mean that i have to change sampling frequency, or frequency spacing to get power...

Re: OFDM sampling

Reply posted 7 years ago (05/12/2017)
Thanks Kaz for your help

Re: OFDM sampling

Reply posted 7 years ago (05/12/2017)
"Fs is only resident of digital domain and is lost in space" what do you mean with lost in space?What is the defects of increasing sampling frequency (Fs>>BW)?It...

Re: OFDM sampling

Reply posted 7 years ago (05/12/2017)
Thanks Kaz for your simple explaination, another question please, the actual bandwidth required to transmit nFFT is fs (7.68MHz) or signal bandwidth (5MHz)?

Re: OFDM sampling

Reply posted 7 years ago (05/11/2017)
Thanks David for your help, the example i work on the number of subcarriers 512 (power 2 number), bandwidth BW 2560 Hz and the frequency spacing 5Hz,the auther used...

Re: OFDM sampling

Reply posted 7 years ago (05/11/2017)
Thanks sir, your wards "Now from discrete frequency domain you get still discrete, but time domain samples" that means the time and frequency domain signals are...

OFDM sampling

New thread started 7 years ago
In OFDM system, The relation N=BW/Δf, where N is number of subcarriers, BW is the available bandwidth and Δf  is the subcarrier spacing (subcarrier bandwidth)...

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