A method of adjusting a radio frequency broadcast signal power level in a crowd- sourced mobile device localization system in a pedestrian area, the method executed in the processor of a server computing device and comprising: localizing a first mobile device to establish a first estimated position within the pedestrian area, and at least a second mobile device to establish a second estimated position within the pedestrian area, the localizing being in accordance with fingerprint data of the pedestrian area, wherein the processor receives a localization data packet including the first estimated position broadcasted by the first mobile device at a first broadcast power level and another localization data packet including the second estimated position broadcasted by the at least a second broadcast device at a second broadcast power level; characterized in that the method further comprises: determining a confidence level for each of the first estimated position and the at least a second estimated position by fusing probabilistic results of one or more concurrent location estimates of a corresponding mobile device, the confidence level being indicative of a degree of accuracy of an estimated position of the corresponding mobile device; and when the confidence level for at least one of the first estimated position and the at least a second estimated position is above a threshold confidence level, providing an input to increase at least one of the first broadcast power level and the at least a second broadcast power level to the corresponding mobile device, and wherein when the confidence level for at least one of the first estimated position and the at least a second estimated position is below the threshold confidence level, providing an input to the corresponding mobile device to lower at least one of the first broadcast power level and the at least a second broadcast power level, and wherein broadcast power levels corresponding to the first mobile device and the at least a second mobile device are increased and lowered based on a power level budget for the crowd-sourced localization system including the first mobile device and the at least a second mobile device. determining a confidence level for each of the first estimated position and the at least a second estimated position by fusing probabilistic results of one or more concurrent location estimates of a corresponding mobile device, the confidence level being indicative of a degree of accuracy of an estimated position of the corresponding mobile device; and when the confidence level for at least one of the first estimated position and the at least a second estimated position is above a threshold confidence level, providing an input to increase at least one of the first broadcast power level and the at least a second broadcast power level to the corresponding mobile device, and wherein when the confidence level for at least one of the first estimated position and the at least a second estimated position is below the threshold confidence level, providing an input to the corresponding mobile device to lower at least one of the first broadcast power level and the at least a second broadcast power level, and wherein broadcast power levels corresponding to the first mobile device and the at least a second mobile device are increased and lowered based on a power level budget for the crowd-sourced localization system including the first mobile device and the at least a second mobile device.