中等规模中继协作通信系统波束成型算法研究

Beamforming Algorithm for Medium-Scale Relay Cooperative Communication System

中文关键词:  中继协作  波束成形  奇异值分解  最大信干燥比  最大信泄噪比  MaMi算法

英文关键词:relay cooperation  beamforming  SVD  max-SINR  max-SLNR  MaMi algorithm

中文摘要:

      针对传统算法在中等规模中继协作通信系统的数据传输速率低、系统稳定性差、网络建设成本高等问题，提出了一种基于改进MaMi技术的迭代方法。该算法在目标函数为多峰函数的情况下，采用基于零空间投影方法，得到了性能提高的正交零空间投影MaMi算法，通过控制算法复杂度，最大可能地找到全局最优解。仿真结果表明，相比原始算法，改进后的MaMi算法有更好的应用性能。

英文摘要:

      An iterative method based on improved MaMi technology is proposed to solve the problems of low data transmission rate,poor system stability and high network construction cost of the traditional algorithms in medium-scale relay cooperative communication system.Under the condition that the objective function is a multimodal function,the zero-space projection method is used to obtain the improved orthogonal zero-space projection MaMi algorithm.By controlling the complexity of the algorithm,the global optimal solution can be found as much as possible.The simulation results show that the improved MaMi algorithm has better application performance than the original algorithm.