TransmiTech

Wimaxorbust Inc., one of our largest customers, is willing to deploy a new generation of cellular wireless networks across the country at multiple frequency bands such as 1.9 GHz, 2.4 GHz, and 5.8 GHz. Due to our excellent reputation in the Telecommunications industry, we were contacted in order to design and optimize the most efficient propagation modeling software available.

Our company decided that the TX-2000 software would be used in order to create a wave propagation model based on the specifications dictated by Wixmaxorbust Inc. Fortunately, our allies provided us a set of eight maps (Cells A-H), each one containing the terrain topology of the specified area. Each map was represented with a simple matrix where each point corresponds to a sector area of 30x30 m². In addition to the terrain topology, we received some measured data corresponding to the power received at each point in four of the given maps (Cells A-D). In order to optimize and calibrate our model, Wixmaxorbust Inc. also presented some important specifications about the base station antennas, such as: azimuth, location (coordinates), altitude, effective isotropic radiated power, and frequency of operation.  

After entering all the parameters required for our model to operate, we were able to calculate a path loss exponent of approximately 3.1 but we decided to use a value of 2.8 for each of the terrains. With this value, the TX-2000 software originated four different maps representing the power distribution emitted by the base station antenna across the different terrains. Furthermore, Wixmaxorburts Inc. developed a special code that allowed us to verify the accuracy of our model. The special code was able to determine the discrepancy between our predictions and the exact and actual measurements taken by our ally in map Cells A-D. This code helped our company to further calibrate the TX-2000 software and making it more effectively in order to meet the given specifications. Finally, we implemented our model in order to simulate the wave propagation along the different terrains presented in Cells E-H.