论文标题
动态MMWave通道的光束跟踪：一种新的训练光束序列设计方法
Beam Tracking for Dynamic mmWave Channels: A New Training Beam Sequence Design Approach
论文作者
论文摘要
在本文中，我们开发了一种有效的训练光束序列设计方法，用于毫米波误差跟踪系统。我们对出发角度的演变施加了离散的马尔可夫过程假设，并在每个光束训练期间引入了最大后验标准以跟踪它。由于对于所得跟踪误差概率而获得明确的表达式是不可行的，因此我们转向其上限，它具有封闭形式的表达，因此将其作为目标函数，以优化训练束序列。考虑到模拟相变施加的复杂目标函数和单位模量约束，我们求助于粒子群算法以解决配方的优化问题。数值结果验证了所提出的训练光束序列设计方法的优越性。
In this paper, we develop an efficient training beam sequence design approach for millimeter wave MISO tracking systems. We impose a discrete state Markov process assumption on the evolution of the angle of departure and introduce the maximum a posteriori criterion to track it in each beam training period. Since it is infeasible to derive an explicit expression for the resultant tracking error probability, we turn to its upper bound, which possesses a closed-form expression and is therefore leveraged as the objective function to optimize the training beam sequence. Considering the complicated objective function and the unit modulus constraints imposed by analog phase shifters, we resort to the particle swarm algorithm to solve the formulated optimization problem. Numerical results validate the superiority of the proposed training beam sequence design approach.
