SC-FDMA/OFDMA system under outdoor NLOS measurement channel at 30 GHz

Abstract

This paper presents an analysis of experimental results of propagation channel measurements obtained at 30 GHz using a deflecting obstacle under Non-Line-of-Sight (NLOS) scenario. Based on measurements held between three buildings under NLOS with a propagation path length of 183m. The transmitter and receiver are placed in two separate buildings and a third building is used to deflect/scatter the signal in order to maintain the transmitter-receiver link. The antennas have a high gain with a beamwidth of 1°. Measurement results are used to evaluate the performance of SC-FDMA/OFDMA system. The results of bit error rate (BER) and CCDF of PAPR approve the transmission efficiency of our system under NLOS outdoor 30 GHz scenario. For 16 QAM, the SNR corresponding to BER=10−4 is around 16 dB and 34 dB for SC-FDMA and OFDMA, respectively. Finally, these results are very encouraging and motivate the use of SC-FDMA as wave form for 5G mobile communications at 30 GHz.