Propagation Models Trials for TV White Spaces in Colombian Rain Forest

TV White Spaces (TVWS) is an attractive technology for rural wireless broadband, because of the frequencies used and the available bandwidth. Some successful trial has been carried out in different countries, with promising results, although the business model is still confusing. Colombian pacific coast is a vast region of tropical rain forest, with disperse afro and indigenous communities, with a complex geography and lack of connectivity. In this work, we show simulations with different propagation models, which includes multiple diffractions, to estimate radio coverage for a TVWS system, intended to provide broadband service in the pacific region. At the moment of writing this paper, the network is in the pilot stage, to verify the simulations and adjust the models; therefore, we only show the simulation results and some very initial results with three operating sites and simulation results for one projected site.