The Research Of Channel Estimation Based On MIMO

The trend of the future mobile communication is digital transformation speed raised and radio frequency spectrum resource used sufficiently. For the rate of frequency spectrum usage raised, MIMO (Multiple-Input Multiple-Output) technology is focused on the mobile communication. The future mobile communication will be one of the key technologies of next generation.The estimated channel technology of MIMO is introduced in this paper. The study about channel separated on multi-channel and the analysis of actual signal transformation of MIMO is presented. The channel mode based on MIMO , SISO (Single-Input Single-Output) time-varying fading channel and the time specification of MIMO, channel space, frequency are discussed.The function of the typical channel and parameter are detailed. Emphasis is on emulation method, making mode of typical time-frequency selected MIMO channel, spatial correlation of MIMO. A part of corresponding emulation results is presented. According to flat fading and frequency selectivity attenuation, the channel analysis method based on training sequence and pilot symbol suited slow fading and fast fading are discussed. The emulation results are presented, analyzed and compared.