Evaluation of digital certificates acquisition in large-scale 802.11-3GPP hybrid environments

This paper evaluates the performance of a hybrid WLAN-3GPP network architecture for delivering subscribers' certificates. Two main categories of simulation scenarios are implemented and evaluated based on the underlying access network technology used; 802.11b and UMTS. Each of the scenarios is categorized further in numerous sub-cases. Results showed that AC acquisition when deployed in large scale between several heterogeneous networks is feasible within acceptable time limits.