Pilot assisted coherent DS-CDMA reverse-link communications with optimal robust channel estimation
Fuyun Ling · 2002
Optimal pilot assisted estimation of communication channels is considered for coherent cellular and PCS CDMA reverse link communications. Both pilot symbol and pilot channel based schemes are described and the optimal estimators for these two schemes are analyzed. Relative mean square estimation error (RMSEE) and optimal power allocation between data and pilot signals are derived based on the analysis. Finally, simulation results are given to show the reverse link performance can be significantly improved by using the pilot assisted coherent communication instead of non-coherent schemes for the CDMA reverse link.