ofdm pilots
Hi,
For 64 subcarriers case in 802.11a the 4 pilots positions is -21,-7,7,21
I think for 1024 subcarriers case the number of pilots increases .There is no need to place at particular place since we are using pilots for the purpose of channel estimation ,more the pilots channel estimation becomes perfect means channel capacity increases,but we hav to conisder the overhead also.
My suggestion is for 1024 subcarriers case place the pilots with period of 14 like above i.e place 14 data carrires in between two pilots.
Regards,
Goud