基于干扰和功率控制的多小区分布式波束成形  

Distributive Beamforming Design in Multicell Downlinks Using Interference and Power Control

作　　者：董明科[1] 李应博[2] 王达[1] 金野[1] 李俊 

机构地区：[1]北京大学信息科学技术学院,北京100871 [2]国家互联网应急中心,北京100029 [3]总参信息化部驻杭州地区军事代表室,浙江杭州310052

出　　处：《电子学报》2015年第3期597-600,共4页Acta Electronica Sinica

基　　金：国家863计划(No.2012AA01A506);国家自然科学基金(No.61071083);中国博士后科学基金(No.2013M530477)

摘　　要：在多小区干扰信道中,基于分布式竞争设计,提出两种优化基站发射波束成形矩阵的设计,使每个小区的最差信干噪比最大.一种是基于干扰控制的设计,利用差异化的干扰系数,抑制小区间的干扰,提高系统性能.另一种是基于功率控制的设计,通过调整各基站的发射功率,提高系统性能.这两种设计,都能保持算法的分布式特性,又能有效地提高用户信干噪比.仿真分析表明,基于功率控制的设计在功率大的情况下,性能优于基于干扰控制的设计.In a mulficell scenario, two improved competitive beamfonning design schemes are proposed to maximize the worst SINR in each cell for downlink transmissions. One is the competitive design with interference control. We use different inter- ference control factors to suppress the inter-ceU interference. The other design is the competitive design with power control. We ad- just the power of each base station （BS） to improve the system performance. Both the two improved designs keep the distributive nature of the competitive design and improve the worst SINR of the system. Simulation results show that the competitive design with power control outperforms that with the interference control when the transmit power increases.

关 键 词：波束成形 多小区 分布式算法 竞争设计 

分 类 号：TN914[电子电信—通信与信息系统]