【摘要】 面向物联网高密度、大连接和差异性服务质量的移动通信网络优化具有重要的研究意义。在此条件下,移动通信网络优化是一种多参数的、针对高计算成本函数的复杂优化问题,基于计算图的移动通信网络覆盖质量评估的计算方式,为运算的并行化提供依据,进而基于计算图获得了覆盖质量指标的梯度计算方式,利用基于反向传播获取的梯度信息指导基站天线工作参数的优化,并引入动量法加速了优化问题的收敛速度。仿真结果表明,本算法适用于移动通信网络的覆盖优化计算。更多还原

【Abstract】 The research on the mobile communication network optimization for the Internet of things large connection and differential service quality has great significance. Mobile communication network optimization is a multi-parameter complex optimization problem with high computational cost function. In order to provide the basis for parallelization of operations, the calculation method of the coverage quality assessment of the mobile communication network based on the computational graph was introduced. Based on the calculation graph, the derivative calculation method of the coverage quality index was obtained, by back propagation to guide the optimization of the antenna parameters. The momentum method was used to accelerate the convergence speed of the optimization algorithm. The simulation results show that the algorithm is suitable for the coverage optimization in mobile communication network.更多还原