Path loss reduction for multiusers by different antenna arrays
Science, Computing and Telecommunications（2014）
摘要
In this paper, we use the shooting and bouncing ray/image (SBRlImage) method to compute the path loss for different outdoor environments. Three types of antenna arrays such as L shape, Y shape, and Circular shape arrays are used in the base station and their corresponding path loss on several routes in the outdoor environment are calculated. Moreover, the genetic algorithm (GA) and Dynamic Differential Evolution (DDE) are employed to optimize the excitation voltages and phases for antenna arrays to form proper antenna patterns. The particle swarm optimization algorithm has better optimization result than genetic algorithm in NLOS case. For antenna arrays Y shape has better optimization result in NLOS case.
更多查看译文
关键词
antenna arrays,genetic algorithms,multi-access systems,particle swarm optimisation,radiocommunication,radiowave propagation,l-shaped arrays,y-shaped arrays,antenna patterns,circular shape arrays,dynamic differential evolution,excitation voltage optimization,genetic algorithm,multiuser path loss reduction,nonline-of-sight communication,outdoor environment,particle swarm optimization algorithm,phase optimization,shooting and bouncing ray-image method,sbr/image method,multiusers,outdoor,path loss,optimization,shape,reflection
AI 理解论文
溯源树
样例
生成溯源树，研究论文发展脉络
Chat Paper
正在生成论文摘要