LTE-A系统预编码码本选择算法研究

In this paper, the MIMO pre-coding codebook selection algorithm of LTE-Advanced system is studied. Traditional pre-coding codebook selection algorithm requires corresponding codebook complete coverage, the improved pre-coding codebook selection algorithm, although based on the traditional pre-coding codebook selection algorithm, which must be optimized, but they were higher implementation complexity. Therefore, this paper gives an improved LTE-Advanced system pre-coding codebook selection algorithm based on the above two pre-coding codebook selection algorithm, and simulation and analysis the algorithm on EPA5, ETU70 channel type. Simulation results show that the algorithm performance is not lower than traditional and improved pre-coding codebook algorithm, but the complexity is significantly reduced.