%0 Journal Article %A LIN Xue-hong %T Codebook Selection Scheme for LTE-Advanced System %D 2014 %R 10.13190/j.jbupt.2014.02.018 %J Journal of Beijing University of Posts and Telecommunications %P 84-87 %V 37 %N 2 %X
Based on an eight antenna double codebook in long term evolution advanced system, the codebook selection strategy is proposed by feedback long term precoding matrix index and short term precoding matrix index separately. The long term precoding matrix indexis calculated by approximating channel capacity and the short term precoding matrix indexis searched by maximizing channel capacities. Simulation shows that the feedback overload and computational complexity are dramatically reduced performance degradation with only about 0.2dB compared with the optimal codebook selection scheme.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2014.02.018