利用SLNR准则基于中断概率约束的MISO干扰信道鲁棒预编码设计  

Outage based robust beamforming for MISO interference channel with SLNR metric

作　　者：何蕊馨 徐静[1] 罗新民[1] 

机构地区：[1]西安交通大学电子与信息工程学院,西安710049

出　　处：《中国科技论文》2016年第20期2284-2288,2311,共6页China Sciencepaper

基　　金：国家自然科学基金资助项目(61302068);高等学校博士学科点专项科研基金资助项目(20120201120020)

摘　　要：针对多小区下行多进单出(multiple-input single-output,MISO)干扰信道,在控制每个用户信漏噪比(signal to leakage plus noise ratio,SLNR)低于门限值的概率小于中断概率的约束条件下,以最小化系统总加权发射功率为优化目标设计线性预编码。利用半定松弛和Bernstein-type不等式,将非凸的具有随机性的原始优化问题转换为确定性凸优化问题。仿真结果表明,所提出的预编码设计比worst-case等比较方案耗费的总加权发射功率更少。In this paper, a robust beamforming method is designed for multi-cell MISO interference channel. The proposed robust beamforming method could minimize the weighted sum power while guaranteecertain signal-to-leakage-plus-noise ratio （SLNR） outage for the users. By employing semi-definite relaxation （SDR） and Bernstein-type inequality, the original non-convex and sto-chastic optimization problem is replaced by conservative convex and deterministic counterpart. Simulation result demonstrates that the proposed precoding design method consumes less transmit power than the relative schemes （such as the worst-case scheme）.

关 键 词：多进单出干扰信道 信漏噪比 Bernstein-type不等式 鲁棒预编码 

分 类 号：TN911.4[电子电信—通信与信息系统]