Today's communication techniques for mobile ad hoc networks take a connection-oriented approach.Mobile nodes need to discover routes and establish a connection before they can communicate. This strategy is not robust as it cannot adhpt to frequent unpredictable topologv changes due to high mobility. Constant reconnections incur signijcant overhead making these schemes unsuitable for applications such as voice and video. To address these issues, we explore a connectionless paradigm in this paper. We leverage technologv such as GPS (Global Positioning System) to allow a source node to discover a grid path to the destination node. Data packets are relayed along this path toward the destination using different intermediate nodes at different times without having to first establish connections between them.The performance of this new solution is essentially unaffecfed by node mobility. As a result, it is suitable for a wide range of mobile applications.
The surface transportation system plays a crucial role in responding to natural disasters and other catastrophic incidents.In this paper, we propose new techniques to enhance ITS (InteNigenI Transporlation Systems) to improve and support homeland security. In particular, we propose two evacuation algorithms, All-Links and FastestLinks, and perform simulation studies to compare their performances. These algorithms are part of a Smart Traffic Evacuation Management System (STEMS) being developed to provide rapid and efficient response to human-caused threats and disasters, by creating dynamic evacuation plans based on incident location and scope.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.