Regarding capacity as well as commercial aspects deploying small cells is a proper way to cover user hotspots. In particular when macro and pico eNodeBs are running on the same frequency the pico site should be located near to the hotspot centre. However, practical user localisation methods have a mean error in the range of 50m. In order to investigate if hotspot detection is possible although the quite large localisation error we simulate erroneous user locations in realistic hotspot scenarios. According to our simulations the hotspots is visually to find on user density maps and a numerical hotspot detection is possible for hotspot user density exceeding 4 times that one outside the hotspot. The deviation between the real and the detected hotspot centre point is well below 20m.
['Jürgen Beyer', 'Marc Christian Hipke', 'Ole Klein']
A Simulative Investigation of Hotspot Detection Based on Erroneous User Location Data