Voice over IPsec: Analysis and Solutions
ACSAC '02 Proceedings of the 18th Annual Computer Security Applications Conference
Alternative Schemes for Dynamic Secure VPN Deployment in UMTS
Wireless Personal Communications: An International Journal
Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS-WLAN Interworking
Wireless Personal Communications: An International Journal
Performance study of IMS authentication procedures in mobile 3G networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Design and performance analysis of CZML-IPSec for satellite IP networks
NPC'07 Proceedings of the 2007 IFIP international conference on Network and parallel computing
Evaluation of audio streaming in secure wireless access network
PCI'05 Proceedings of the 10th Panhellenic conference on Advances in Informatics
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The IP Multimedia Subsystem (IMS) defined by 3GPP is designed to provide robust multimedia applications over diverse access technologies. A promising solution to protect such applications is to use the Secure Internet Protocol (IPSec); however, IPSec has some drawbacks, particularly on the performance and the QoS of real-time applications. On the other hand, seamless vertical handover is one of the challenging issues in wireless networks. Vertical handover requires fast and efficient control over various wireless technologies to realize service continuity and seamless mobility. This paper presents an IPSec-based end-to-end securing solution for real-time services and proposes a secure and fast seamless handover solution preserving the QoS and security when moving between heterogeneous access networks. An analytic model is used to evaluate the performance of the proposed solution in term of end-to-end latency and packet loss. The results show that our solution provides high performance for real-time applications while guaranteeing end-to-end security.