Combined effect of diversity reception/channel coding on error floor due to delay spread in DPSK mobile radio

摘要

The combined effect of postdetection diversity reception and concatenated channel coding on the BER floor of pi /4-shift QDPSK due to multipath channel delay spread in Rayleigh fading environments is experimentally investigated. Two-branch postdetection MRC diversity and Reed-Solomon BCH concatenated coding are applied. Experimental results show that for a BER floor of 10/sup -5/ the tolerable RMS delay spread can be increased by approximately 70% over the uncoded, diversity reception case.