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Hey,
If you look at any standard OFDM modulation literature, there is IFFT at Tx side and FFT at Rx side, that's how they are implemented. FFT and IFFT blocks can be interchanged as they are inverse of each other.
it depends how you analyze the signal, another way to analyze this is
Freq domain...
Hey,
you are multiplying all samples with a constant phase instead of linear phase to get shift in frequency domain.
you should do
b1 = b.*exp(1j*2*pi*fo*(1:N)/N);
When a mobile phone is connected to a Base Station/Cell/NodeB and is not in voice or data call, it gets/send some information periodically. This period can vary from technology to technology. You can utilize this property to identify a mobile phone.
While connected to voice or data, power will...
I want to understand the difference between TDD and FDD PRACH procedure for UMTS. As in FDD the power estimation (to be sent in uplink) is based on transmission on downlink frequency, while in TDD these both are on same frequency.
Hi Mehdi12, TDMA is used in GSM. Actually, GSM is mixture of FDMA and TDMA. Also in UMTS they use TDD apart from FDD. You can find much more details on these technologies online.
Re: real time data transfering with gprs
that will depend on the data rate of your signal and maximum data rate of GPRS (around 384 Kbps in ideal conditions). If data rate of your signal is less than max data rate of GPRS than I guess you can send your data without lag.
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