Uncertainty assessment in access control of pervasive computing environments

One of the important risk factors in pervasive computing environments is uncertainty. The cause of this uncertainty, changes in user mobility or transport user. In general, uncertainty in pervasive computing environments occurs in two cases: uncertainty in sensors and uncertainty in sensor information combination. Error in the verification and misunderstanding can be caused to fall risk pervasive computing applications security, power, efficiency and performance. In fact, access control in this environment is dependent on the evaluation of sensors and information received from them. In other words, if the information is correct, that is received through the sensors, can have access control with high reliability.