单小区功率约束下的多小区协同波束成形

摘要

Beamforming optimization problem is transmitted with per-cell power constraints for multi-cell downlink system investigation. A uplink-downlink duality under per-cell power constraints is established, based on the second-order statistics of the channel coefficients instead of instantaneous channel state information. And with the aid of the duality, an effective algorithm is proposed for calculating the beamforming problem with per-cell power constraints.%针对单小区功率约束,本文考虑多天线多小区下行链路波束成形优化问题.在无法获得瞬时信道信息的条件下,本文基于信道二阶统计量,建立了单小区功率约束下的多小区上下行链路对偶性,并基于该对偶性,为单小区功率约束下行波束成形问题提出了有效数值算法.