Spatial and Frequency Diversity Combining Order in Uplink SC-FDMA with SIMO Systems

Abstract

Key Words : SIMO, SC-FDMA, frequecy diversity gain, spatial diversity gain, diversity combining order ABSTRACTWe investigate BER performance according to the order of spatial and frequency diversity combining in uplink SC-FDMA of SIMO systems. It is found that frequency diversity combining (FDC) after spatial diversity combining (SDC) is better than the reverse order combing in all SNR (Signal to Noise Ratio) range. Also, it is shown that FDC after SDC requires less computational complexity than the reverse order combining.