An Enhanced Difference Method for Multi-objective Model of Cellular Base Station Antenna Configurations

• 作者: Suixiang Gao Xiaofei Wang Zhipeng Jiang
• 来源期刊: 通讯与网络(英文)
• 学科: 数学
• 关键词: Mobile Network OPTIMIZATION MULTI-OBJECTIVE OPTIMIZATION DECOMPOSITION DIFFERENCE Method Particle SWARM OPTIMIZATION
• 年，卷（期）: 2013,（3）
• 页码范围: 361-366
• 页数: 6页
• 分类号: O1

摘要

In this paper, we propose a fine-grained grid-based multi-objective model which aims at optimizing base station antennas' configurations, such as transmit power, antenna tilt and antenna azimuth, in order to upgrading network performance in cellular networks. As the model is non-convex, non-smooth and discrete and computationally expensive, we use decomposition method to solve the MOP problem. We mainly focus on addressing the scalarized sub-problem after decomposition. For the scalarized sub-problem, we propose an enhanced difference method. First, difference of each component is calculated, which provides the guidance of optimization. Then an OPSO is applied to search the optimal step length. The method is applied to GSM network optimization on an area in Beijing. The effect of the application shows that proposed method has a good performance, and is effective/efficient to solve mobile network optimization problems.