In this paper

a novel algorithm for iterative joint channel estimation and signal detection is proposed.It makes the channel estimation of the next OFDM symbol by using the signals detected by using the ZF algorithm

then effectively eliminates the inter-symbol and inter-carrier interferences by making full use of the mutual information between the channel estimation value and the detection symbols

thus improving the precision of the channel estimation and symbol detection.The simulation results show that under different channel conditions

this algorithm performs remarkably better than the traditional signal detection methods.