Predictive Survey
A predictive Wi-Fi survey is a method used to plan and design a Wi-Fi network without physically visiting the location. Instead of conducting an on-site survey, predictive surveys use specialised software to model the wireless environment based on floor plans, building materials, and other relevant information.
Predictive Wi-Fi surveys are valuable in the early planning stages of a Wi-Fi network deployment, as they help estimate the number of access points needed, optimal access point locations, and potential challenges that may arise during the installation. While predictive surveys offer valuable insights, they do not replace the need for validation through physical on-site surveys, especially in complex environments with unique challenges or heavily dynamic RF conditions. Combining both predictive and on-site surveys can lead to a robust and successful Wi-Fi network deployment.
The process typically involves the following steps:
Data Collection: The Wi-Fi surveyor gathers information about the location, such as building blueprints, floor plans, dimensions, and construction materials. They also consider the number of users, expected devices, and the intended use of the Wi-Fi network.
Predictive Modelling: Using Wi-Fi planning software, the surveyor inputs the collected data and creates a virtual representation of the wireless environment. The software simulates Wi-Fi signal propagation, interference, and coverage based on the provided information.
Access Point Placement: The software suggests the optimal locations for access points based on the predictive modelling. It takes into account factors such as signal strength, coverage area, and potential sources of interference to recommend the best placement.
Network Configuration: The surveyor configures the virtual Wi-Fi network with appropriate settings, including channel allocation, transmit power, and security settings.
Heatmaps and Reports: The software generates heatmaps and reports that illustrate the predicted signal strength and coverage throughout the location. These visualizations help assess potential coverage gaps, interference areas, and areas with sufficient signal strength.
Iteration and Optimisation: The surveyor can fine-tune the network design by adjusting access point locations, settings, or configurations in the software. Multiple iterations may be performed to achieve the desired Wi-Fi network performance.