Analysis of channel estimation algorithm on OFDM systems for WMAN physical layer
Shi Ji-gang · 2008
OFDM was the main modulating technique of the physical layer for IEEE802.16a WMAN.The channel estimation model for IEEE802.16a OFDM system was designed;and the principle and feature of typical Pilot-Symbol Assisted Modulation(PSAM) channel estimation methods were presented.The LS,SVD,MMSE,LMMSE algorithm and their performance on MSE and SER were compared.Simulation results showed the LMMSE achieved better performance of MSE and SER with significantly much lower computational complexity.The advance of the channel estimation research is offered finally.