Robust networks for smart access systems

Purpose and goal

Robust wireless communication is a requirement for many IoT application in smart buildings. The aim of this project has been to create methods and tools for analysis and diagnosis to be able to increase the network robustness. To achieve this, we have designed and implemented a system that measures the network quality in indoor environments. The project has also carried out several measurements in typical indoor environments, where common interferers were present, and using this, created methods that increases the network robustness.

Expected results and effects

The measurement system created by project and the measurements is now important knowledge in the selection and design of wireless technology in future solutions. Other outcomes of the project include the development and testing of methods to identify common or expected interferers, such as how other wireless technologies interfere with indoor networks. Finally, the project has also developed a prototype that can identify if a problem link is affected by external interference or is too weak, which is import for efficient problem troubleshooting.

Planned approach and implementation

The project has mainly been based on measurements from realistic wireless mesh-networks in several typical indoor scenarios. Partly through testing specific solutions in these networks and partly through the collection of measurement data about the networks operation, we have been able analyze the solutions. This has been extended with specific measurements of identified problem scenarios, such as known or expect interferers. In this way, new methods have been developed that can evaluate how a network deployment operates.