Spectrum Efficiency Increment for Two-Way Relay Networks Using Cross-Correlation Block

Abstract

Two way relay networks are generally used in OFDM wireless systems, where relay nodes pass the information from sources to destination nodes. High PAPR, BER and out-of-band distortion in relay nodes are three drawbacks in this network topology. In this paper a cross correlation block is located in the relay node to reduce the PAPR and BER value and suppress the out-of-band distortion in the relay output. Our simulation shows that the proposed method is superior to a new research article in terms of PAPR, BER and power spectral density as 1 dB, 1 dB and 6 dB, respectively.