Wireless Mesh Networks (WMNs) have many advantages such as low cost and increased high speed wireless Internet connectivity, therefore WMNs are becoming an important networking infrastructure. In our previous work, we implemented a Particle Swarm Optimization (PSO) based simulation system for node placement in WMNs, called WMN-PSO. Also, we implemented two intelligent hybrid systems for solving node placement problem in WMNs: PSO and Hill Climbing (HC) based system, called WMN-PSOHC, and PSO and Simulated Annealing (SA) based system, called WMN-PSOSA. In this paper, we evaluate two hybrid simulation systems WMN-PSOHC and WMN-PSOSA. We compare WMN-PSOHC with WMN-PSOSA by conducting computer simulations.
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