%0 Conference Paper
%K Collaboration
%K Context
%K Context modeling
%K Global Positioning System
%K Mobile Collaboration
%K Mobile communication
%K Performance evaluation
%K Positioning
%K Sensors
%K ubiquitous systems
%D 2015
%R 10.1109/SMC.2015.229
%T Providing Ubiquitous Positioning in Outdoor Environments