Rajadurai Rajavelsamy

A Novel Method for Authentication Optimization during Handover in Heterogeneous Wireless Networks

This paper presents a solution for optimizing network access authentication procedure and security context transfer during vertical handover in heterogeneous wireless networks (HWN). Security in HWN is a major challenge due to the vastly different security architectures used within each network. Currently, standardization working groups study the optimization of authentication procedure and security context transfer for seamless handover between heterogeneous networks. The goal of this paper is to provide a security frame work that accounts for heterogeneity in wireless access networks without degrading the level of security currently provided by the individual wireless systems. We propose a new frame work for access network specific authentication optimization and security context transfer during vertical handover preparation phase. We also demonstrate how the proposed security frame work provides improvement in the handover performance.

Security aspects of inter-access system mobility between 3GPP and non-3GPP networks

World leading telecom technology manufacturers and network operators have initiated a joint initiative aimed at driving forward the realization of the next generation of high performance mobile broadband networks based on 3GPP LTE/SAE specifications [1]. The motivation of 3GPP LTE/SAE was when it became clear that the future telecommunication systems was clearly IP with everything (the ldquoall-IPrdquo network, AIPN [2]), and that access to the 3GPP network would ultimately be not only via UTRAN or GERAN but by WiFi, WiMAX, or even wired technologies [3]. In this paper, we propose security mechanisms for secure fast handover during Inter-RAT handover, particularly handover between 3GPP and non-3GPP networks. This paper highlights the possibility and mechanism for security context transfer during Inter-RAT handover between 3GPP and trusted non-3GPP networks and also a pre-authentication mechanism for handover between 3GPP and untrusted non-3GPP networks.