Wireless Network Planning is the study of the antenna positioning and electrical parameters in order to achieve specific goals such as network quality of service maximization and EM emission reduction. These antennas are commonly placed on Base Stations that have to ensure a given cellular coverage in a given geographical area.Not only the geographical position but many other antenna parameters have to be accounted for: horizontal orientation angle, electrical tilt, mechanical tilt, height, total emitted power, transmission gain, frequency, radiation pattern and so on.This is a complex evaluation and optimization problem characterized by heterogeneous constraints. These constraints vary according to different wireless communication standards, different geographical area that have to be considered… The more constraints there are, the less the network is efficient and the more the EM levels have to be increased in order to maintain an acceptable quality of service.
A typical optimum wireless network planning problem requires the use of:
- an EM simulator in order to evaluate the EM field levels produced by BS antennas in a specific geographical area. The EM evaluation is obtained using several radiopropagation models
- an optimizer that determines the best configuration for the positioning and the antenna electrical parameters. Iterative algorithms and metaeuristhic techniques (i.e.: genetic algorithms, tabu search…) are the best choices
- a database that has to store the antenna settings and technical data
- a geographical information system that provides georeferenced data to the other modules
The EML2 group operates in the field of optimum 2G, 2.5G, 3G and BWA wireless network planning both with academic courses (such as “Antenne” and “Compatibilità Elettromagnetica”) and with research activities: this is the case of “SeGriPlaNet”, “Genetic Agents” , “POR-PUGLIA 2007-2013″ projects.