A Secure Context Management for QoS-Aware Vertical Handovers in 4G Networks

Abstract

Abstract. In the 4G mobile networks which are expected to be very complex systems interconnecting various technologies, new intelligent services will need to be aware of various contexts. In this paper, we present the context management framework that exploits the agent technology in mobile communications and services. We focus mainly on the seamless secure handover which uses context information regarding location privacy, security, network environment, and QoS priority. We designed QoS Broker that can perform the autonomous decision making for context-aware handover without the direct intervention of users. To minimize the signaling overhead, we present an efficient context transfer mechanism among the Brokers. We also designed the context model for the seamless vertical handovers so that the Brokers could ensure the right context is available in the right place at right time. We developed the testbed and analyzed the performance of QoS-aware secure roaming with context transfer. Analytical results show that our context-aware vertical handover provides better performance and security with lower latency.

Adaptable Context Management Framework for Secure Network Services

“…Thus, access to those data should be properly secured. In paper [27], the authors present the context management framework that exploits the agent technology in mobile communications and services of 4G networks. They focus mainly on the seamless secure handover which uses context information regarding location privacy, security, network environment, and QoS priority.…”

A Fuzzy Based Handover Decision Scheme for Mobile Devices Using Predictive Model

“…4G is a collection of technologies and protocols which generate packet-switched networks which are optimized for data [1]. The fourth generation (4G) wireless networks possess specific characteristics like higher usability anywhere, anytime and with any kind of technology and they also assist services intelligently at making the transmission cost low [2]. It has a wide area of applications in extensive wireless multimedia services, full-motion video applications and wireless teleconferencing [3].…”

“…The inabilities and downsides of 3G propel the deploying of 4G [3]. The network architecture has a core component of system integration [2]. The existing wireless technologies are coherently integrated in 4G and this provides fast and extensive access and service for the cellular user.…”