基于信干噪比反馈的多基站协作预编码

针对蜂窝小区的干扰,给出了基于信干噪比(SINR)反馈的基站协作策略,采用SINR门限锁定系统边缘用户,避免了传统穷搜索算法的复杂性,在多小区规模上索引协作基站。基于SWF功率分配,采用SVD预编码设计。仿真表明,该方案既弱化了小区边缘用户受到的干扰,提高了系统信息吞吐量,又减少了高反馈量带来的复杂度,是一个很好的折中方案。

Research of pre-coding with multi-cell cooperation

In this paper, for inter-cell interference, we propose a cooperation strategy based on the SINR feedback. According to the SINR decision threshold, we lock edge users to avoid the complexity of the traditional poor search algorithm and index the collaboration BS within multi-cell scale, Based on the SWF power allocation algorithm, we use SVD to do the pre-coding design. Simulation resuhs show that the program, which not only weakens the cell edge users disruption and improves the information throughput, and reduces the complexity brought by the feedback amount, is a quite good compromise.