KORUZA grows: World Wide Experiment SL

Development of wireless optical system KORUZA has reached the 5th prototype generation and it is time now, to put it out in the wild and properly test it. We are launching the World Wide KORUZA experiment to deploy more then 10 links worldwide with a range of sensors and a test device, to observe the performance over a 12 month period. Experimental results are expected to identify error sources in the system as well as create an open dataset for future study of free-space communication system as well as KORUZA. Research organizations, community networks and others welcome!

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For the past year I have had the pleasure of working on KORUZA full-time with the support of Shuttleworth foundation Flash grant and NLnet foundation grant, founded Institute IRNAS Rače and have taken the system from a proof-of-concept design generation 1 showing the low-cost design feasibility to a well formed and optimized 3D printable device of generation 5 currently being finalized. More information and video.

Three sets of devices of generation 4 have been constructed, first deployed at Institute IRNAS Rače over a distance of 50m, second deployed at Jožef Stefan Institute in Ljubljana over distance of 180m, the third being mobile for demonstration and testing. Several months of experimental data has shown the main error source to be thermal expansion of the systems, causing mis-alignment of approximately 30mm at a distance of 100m for a temperature difference of 20 degrees. Generation 5 prototype improves on the unit construction with 3D printed object reinforcement with plastic structure and metal inserts, expected to significantly reduce this problem.

World Wide Experiment calls for organizations to participate and sponsor an experimental deployment at their location, the world wide distribution insuring KORUZA is exposed to a large range of different environmental conditions and installation scenarios. All the experiments together will evaluate the system performance and on the local level create and system performance baseline for the particular location, significantly useful for researchers that wish to use KORUZA as a platform for experimentation. With the open-source release the construction of additional units will be possible, comparing their performance to the baseline and evaluating improvements. The sponsorship will enable us construct 10 sets of experimental systems along with all the sensors, enable preparing the documentation for the alpha version open-source release this fall. More information on the experiment.

KORUZA is slowly but steadily maturing, a large number of ideas has been tested in collaborations with contributors from wlan slovenija and Društvo elektronikov Slovenije. Check out Institute IRNAS Github page for some of them already published, as well as the 3D printer Troublemaker and wlan slovenija Github. Although the development of the wireless optical system is rather specific, sub-system design ideas and best practices have been applied to numerous projects with good results.

The future of KORUZA is bright and I hope to soon empower makers around the globe to build their own gigabit networks of the future.