In my company we are currently coding a software that simulate radio propagation in outdoor environment. It is used for RAN network planning and dimensioning by various client. It basicly takes the geographic data (building, ground height) and the antenna carateristic (frequency height, antenna diagram) and output the coverage map. We use to earn a lot of money with it but currently our competitor catch us back and we are no longer the best in the market. Any idea of what we could do to improve the situation ?