hi, could any one tell me wht should be the length of Cyclic Prefix(CP) in accordance to symbol/block length.
Is there any relation between or just any length is good?
The cyclic prefix, which is transmitted during the guard interval, consists of the end of the OFDM symbol copied into the guard interval, and the guard interval is transmitted followed by the OFDM symbol. The reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of the multipaths when it performs OFDM demodulation with the FFT.
CP length can be 10-25% of Symbol period
---------- Post added at 18:25 ---------- Previous post was at 18:20 ----------
Do we need guard interval in ODFM? I think we can just use cyclic prefix only?
yes, i can help u out in explanation as well as coding my id is er.projectdeveloper@gmail.comthis cyclic prefix is one block in OFDM. whether iam right. i need to know coding for basic OFDM structure and to reduce PAPR. please aya make me favour iam waiting for your reply.
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