WIRELESS LAN SYSTEN DESIGN CONSIDERING AVERAGE PATH LOSS MINIMIZATION
Narongchai Ungurawanich, Naruemon Wattanapongsakorn · 2005
Path loss is an important issue in infrastructure-based wireless LAN design. In this paper, we consider infrastructure-based wireless LAN network design by minimizing average path loss in indoor environment service area. Path loss is an attenuation factor which is a major cause of network performance degradation. The design aims to minimize average path loss and serve all traffic demand in the service area with capacity and coverage restrictions and other requirements. The problem is formulated as a non-linear optimization problem. Genetic Algorithm (GA) is applied to solve this problem for finding appropriate access points’ parameters including locations, frequency channels and power levels. GA is an effective heuristic searching algorithm suitable for various types of problem solving. The GA results are captured and evaluated with a brute-forced search approach where optimum solutions can be obtained.