CAJ | 학술논문

利用等效矩阵和树搜索方法,提出了第三代合作伙伴计划长期演进(3GPP LTE)系统中发射天线数为4的预编码码本选择方案. 将16组预编码码本等效为5组预编码码本,再通过树搜索找到最佳码本. 与最优码本选择方案相比,本方案有效减少了码本选择数目,降低了计算复杂度. 仿真结果表明,此方案性能非常接近最优码本选择方案.
이용등효구진화수수색방법,제출료제삼대합작화반계화장기연진(3GPP LTE)계통중발사천선수위4적예편마마본선택방안. 장16조예편마마본등효위5조예편마마본,재통과수수색조도최가마본. 여최우마본선택방안상비,본방안유효감소료마본선택수목,강저료계산복잡도. 방진결과표명,차방안성능비상접근최우마본선택방안.
Based on equivalent matrice and tree search, codebook-based precoding selection strategy is presented for four transmission antenna ports in the 3rd Generation Partnership Project long term evolution(3GPP LTE) system. Sixteen codebooks are equivalent to five ones, and then the best codebook is found by the tree search method. Compared with the optimal codebook selection scheme, the proposed selection strategy can reduce codebook number and computation complexity effectively. Simulation results demonstrate that the performance of the proposed strategy near to that of the optimal codebook selection scheme.