A joint channel estimation and data detection scheme which is based on Markov chain Monte Carlo(MCMC) is proposed for multiple-input multiple output orthogonal frequency division multiplexing(MIMO-OFDM) systems with multi-tone narrow-band interference(MTNBI).The channel impulse response

the noise variance and the indicator of the impulse noise can be estimated accurately

and then the receiver lmows whether th signal is interfered by the narrow band interference.One of the most attractive advantages of MCMC method is that it can cooperate with soft-input soft-ouput decoding

and山us it can be used in Tlubo detection and complete the turbo detection.Simulation results show that compared with the receiver with ideal channel state infotmation

the proposed receiver only has 3dB performance loss under the slow fading channel.