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We implemented a working IP multicast forwarding prototype for use in mobile ad hoc networks (MANETs) based upon flooding mechanisms. We present the design of a working experimental prototype and some initial performance results using the NRL mobile network emulation system and various optional flooding approaches within the design framework. In addition,(More)
OBJECTIVES To investigate the relationship between H. pylori infection, gastric cancer and other gastric diseases through the changes in gastric mucosa and the status of different gastric diseases within 5 years after H. pylori eradication in H. pylori-positive subjects in a high incidence region of gastric cancer. METHODS One thousand and six adults were(More)
Two important enabling but evolving technologies supporting future DoD network-centric systems at the tactical edge are, mobile ad hoc networking (MANET) and Multi-Agent Systems (MAS). Despite their value in enabling more autonomous network system operation scenarios, open research and engineering questions remain regarding robust interoperation,(More)
A number of technologies are evolving that will help formulate more adaptive and robust network architectures intended to operate in dynamic, mobile environments. One technology area, mobile ad hoc networking (MANET) enables self-organizing, multi-hop heterogeneous network routing services and organization. Such technology is important in future DoD(More)
Natural, technological and man-made disasters are typically followed by chaos that results from an inadequate overall response. Three separate levels of coordination are addressed in the mitigation and preparedness phase of disaster management where environmental conditions are slowly changing: (1) communication and transportation infrastructure, (2)(More)
The Naval Research Laboratory (NRL) Mobile Network Emulator (MNE) is a low-cost, flexible wireless mobile internetwork protocol (IP) test environment that provides flexible, dynamic topology control and manipulation for testing of both IPv4 and IPv6 dynamic network scenarios. Direct and indirect software support for network node motion modeling is(More)
— Role allocation has emerged as one of the key issue in teamwork involving communication. While direct point-to-point communication is expensive and uncertain, access to neighbors is reliable and efficient in scale-free networks such as those found in open environments and social networks. This suggests decentralized approaches to role allocation based on(More)
Delegating the coordination role to proxy agents can improve the overall outcome of the task at the expense of cognitive overload due to switching subtasks. Stability and commitment are characteristics of human teamwork but must not prevent the detection of better opportunities. In addition, coordination proxy agents must be trained from examples as a(More)
Two enabling technologies for envisioned tactical network systems are mobile ad hoc network (MANET) routing and collaborative Multiagent Systems (MAS). Despite their respective technical value in enabling more distributed, autonomous networking, open research and engineering questions remain regarding robust interoperation, standardization, and design of(More)