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The handoff decision among heterogeneous wireless networks is a very important issue for integrating WLANs and cellular networks. Such networks exhibit different characteristics with respect to bandwidth, latency, power, and their charge model as well. In this paper, we present extensive numerical simulations of a novel vertical handover mechanism, which we proposed recently. We compare our mechanism...
Quality of service support for MANETs is a challenging task due to dynamic topology and limited resources. The main purpose of QoS routing is to find a feasible path that has sufficient resources to satisfy the constraints. In this paper a novel QoS routing algorithm based on ant colony optimization is proposed. The proposed algorithm uses Ant-like agents to discover and maintain paths, that satisfy...
One of the basic problems in maritime tactical networks is how to maximize the quality of service (QoS) achieved by critical traffic while dealing with mobile and limited-capacity links. This paper describes an evaluation of the resource reservation service (RRS), a distributed admission control protocol designed to guarantee end-to-end bandwidth for critical traffic in the maritime environment. The...
Pervasive computing is an emerging field where a user will interact with a large number of computing devices simultaneously providing access to the information and services anytime, anywhere. To realize that Mark Weiser's vision of disappearing technology and ubiquitous/pervasive computing a lot of research efforts are needed. A QoS based middleware is needed to integrate the existing technologies...
Wireless local area network access points are being used extensively by mobile users. Therefore an intelligent mechanism is needed to allow mobile devices to switch between access points when a particular access point is heavily congested with network traffic. This is to allow users to perceive a better quality of service. This paper describes the qualitative study of using an intelligent access point...
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