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In recent years the Department of Defense has aggressively invested in development of an Internet Protocol (IP) based network that interconnects mobile air platforms and ultimately will also connect to the Global Information Grid (GIG) as part of its Net-Centric Warfare initiatives. One of the major visions for the IP based networks is to support interoperable voice communication amongst heterogeneous...
It is well known that no security mechanism can provide full protection against a potential attack. There is always a possibility that a security incident may happen, mainly as a result of a new or modified attack that the employed countermeasures cannot handle or identify. It is therefore useful to perform a deferred analysis of logged network data, in an attempt to identify abnormal behavior/traffic...
Service migration enables continuity of service experiences while changing devices, without terminating or disturbing the running sessions of the service. It has been proposed as an important application for emerging ubiquitous computing environments. This paper specifically studies service migration for voice over IP (VoIP) services by applying session initiation protocol (SIP) as the main method...
In order to provide seamless VoIP service in the mobile wireless environment, we need to minimize the disruption time to process a handoff of an ongoing VoIP call. There are several schemes focusing on this issue. However, they require a lot of signalling message exchanges, resulting in exposures of confidential information of the mobile nodes in network. We propose a dynamic shadow registration scheme...
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