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http://dx.doi.org/10.13089/JKIISC.2012.22.2.213

Evaluation of Authentication Signaling Load in 3GPP LTE/SAE Networks  

Kang, Seong-Yong (Sungkyunkwan University)
Han, Chan-Kyu (Samsung Electronics)
Choi, Hyoung-Kee (Sungkyunkwan University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.22, no.2, 2012 , pp. 213-224 More about this Journal
Abstract
The integrated core network architecture and various mobile subscriber behavior can result in a significant increase of signaling load inside the evolved packet core network proposed by 3GPP in Release 8. Consequently, an authentication signaling analysis can provide insights into reducing the authentication signaling loads and latency, satisfying the quality-of-experience. In this paper, we evaluate the signaling loads in the EPS architecture via analytical modeling based on the renewal process theory. The renewal process theory works well, irrespective of a specific random process (i.e. Poisson). This paper considers various subscribers patterns in terms of call arrival rate, mobility, subscriber's preference and operational policy. Numerical results are illustrated to show the interactions between the parameters and the performance metrics. The sensitivity of vertical handover performance and the effects of heavy-tail process are also discussed.
Keywords
3GPP authentication and key agreement (AKA); long term evolution (LTE); evolved packet system (EPS); renewal process theory; mobile network security; performance evaluation;
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