Blind MIMO Channel Estimation Based on Modulation-Induced Two-Cycle Cyclostationarity

摘要

In this paper, a novel approach is presented to the multiuser channel identification. The approach makes use of the modulation induced cyclostationarity, capable of identifying individual channels of different users. By means of the decomposition of the cyclic spectrum method, the blind estimation of the channel can be achieved. The approach is rather simple, with considerable advantages over existing techniques, and suitable for the multiuser uplink. The identifiability condition and its proof are also concluded in the paper. And finally the simulation of identification algorithm is given.