摘要
给出了大规模多输入多输出(massive multiple input multiple output,MIMO)多用户通信系统下行波束形成最小化问题转化凸优化问题的一种方法。利用拉格朗日对偶方法,通过引入参数,将大规模MIMO多用户通信系统下行多用户波束形成的一般优化问题表述为拉格朗日方程,再通过其对偶方程的最优化分析,将该问题转换为凸优化问题,为大规模MIMO多用户通信系统提升系统能效提供了一种方法。
A method for transforming convex optimization problem into a downlink beamforming minimization problem for massive multi-input multi-output(MIMO) multiuser communication systems is presented.By using the Lagrange duality method and introducing some parameters,the general optimization problem of downlink multiuser beamforming for massive MIMO multiuser communication systems is formulated as Lagrange equation,and then,the optimization analysis of its dual equation is carried out.The problem is transformed into a convex optimization problem,which provides a method for improving system energy efficiency in massive MIMO multiuser communication system.
作者
何华
姜静
HE Hua;JIANG Jing(School of Communication and Information Engineering,Xi'an University of Posts and Telecommunications,Xi'an 710121)
出处
《西安邮电大学学报》
2018年第6期23-25,共3页
Journal of Xi’an University of Posts and Telecommunications
基金
国家自然科学基金资助项目(6187012068)
