基于滚动窗口的WCDMA无线网络规划

Planning WCDMA Wireless Networks Using Rolling Window

借鉴滚动窗口优化的基本原理,研究了大规模WCDMA无线网络基站的规划问题．提出了基于滚动窗口的WCDMA无线网络基站滚动规划方法,把原优化问题的整体求解分散在滚动窗口内进行,设计了二维空间内的滚动策略,同时对WCDMA网络中的相互干扰滚动预测,证明了这种基于滚动窗口的规划方法能够保证全局优化目标单调下降,通过对不同滚动策略的仿真计算,说明了滚动策略设计对二维空间内滚动窗口优化的重要性．

The large scale optimization problem of WCDNA wireless networks base station planning is studied by means of the basic principle of rolling window optimization. A WCDMA base station planning method based on rolling windows is presented, where the global optimization problem is decomposed into small scale optimization problems in rolling windows. An effective shifting strategy is designed to move the windows in two-dimensional space, and the inter-interference in WCDMA networks is predicted for each rolling window. It is proved that our method keeps the global objective of the original problem non-increasing during optimization. In simulation, three different shifting strategies are tested, and the results are analyzed. This paper shows the importance of shifting strategy for rolling windows in two-dimensional space.