Pilot-assisted channel estimation in MC-CDMA for future mobile cellular systems
M.A. McKeown, David G. M. Cruickshank, Iain Lindsay, S.A. Farson, Yin-Long Hu · 2002
The effect of two different pilot-assisted channel estimation techniques on BER in Multi-Carrier CDMA (MCCDMA) is considered. The first technique involves sending both data and pilot symbols in the same OFDM symbol. The second technique involves sending data and pilot symbols in separate OFDM symbols. In both cases multi-access interference is present. Simulations of both systems in a UMTS multipath channel are presented.