I finally figure out how to receive packet using OFDM and Alamouti but
unfortunately looks like I cannot detect all the peaks.
10% of the packets that I receive are right.
I think that I experience a phase rotation, i.e. instead of receiving
-1, I receive +1 for some preamble symbols and hence the channel
estimate matrix has negative components.
I am using PN to detect peaks.
Do you have any advise or suggestion on how to fix this?
I though to put a delay using a sleep in the alamouti encoder between
2 consecutive OFDM symbols in order to avoid the overlapping of
symbols but it doesn’t work.
Looking forward to hearing from you
Vanessa GARDELLIN, Ph.D.
Institute for Informatics and Telematics (IIT),
Italian National Research Council (CNR)
Via G. Moruzzi 1
56124 Pisa - ITALY
E-mail: [email protected]