Performance analysis of OFDM based decode-and-forward relay over Nakagami fading channel

Cooperative communication is a promising technology for significant efficient spectrum uses in future wireless communication. This paper derives the signal to noise interference ratio (SNIR) and average bit error rate (BER) for orthogonal frequency division multiplexing (OFDM) based decode and forward (DF) relay scheme over Nakagami fading channels. The resulting expressions are single relay with the presence of frequency offset and phase noise. Numerical results are provided to show that of OFDM based DF relay scheme with diversity combining technique is better performance in cooperative wireless communication.