The Effect of Frequency Offset on Network Coding with 4FSK Modulation
Heng yong Wang, Wei pin Zhu, Qing Min Meng, Hao Wei, Xin wang Wan · 2013
We evaluate a scheme of single-relay network coding based on 4FSK (4 Frequency Shift Keying) modulation.Firstly, a loose upper bound BER (Bit Error Rate) of 4FSK is derived in the presence of frequency offset in the direct link.Secondly, 4FSK modulation is utilized in the three-slot two-way relay network and the BER of the transmission scheme is analysed and simulated in the case of the frequency offset.